freebsd-ports/graphics/piddle/files/patch-2to3

--- src/piddle/PixMapWrapper.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/PixMapWrapper.py
@@ -93,7 +93,7 @@ class PixMapWrapper:
 
 	def __setattr__(self, attr, val):
 		if attr == 'baseAddr':
-			raise 'UseErr', "don't assign to .baseAddr -- assign to .data instead"
+			raise('UseErr', "don't assign to .baseAddr -- assign to .data instead")
 		elif attr == 'data':
 			self.__dict__['data'] = val
 			self._stuff('baseAddr', id(self.data) + MacOS.string_id_to_buffer)
@@ -109,7 +109,7 @@ class PixMapWrapper:
 		elif attr == 'hRes' or attr == 'vRes':
 			# 16.16 fixed format, so just shift 16 bits
 			self._stuff(attr, int(val) << 16)
-		elif attr in _pmElemFormat.keys():
+		elif attr in list(_pmElemFormat.keys()):
 			# any other pm attribute -- just stuff
 			self._stuff(attr, val)
 		else:
@@ -129,7 +129,7 @@ class PixMapWrapper:
 		elif attr == 'hRes' or attr == 'vRes':
 			# 16.16 fixed format, so just shift 16 bits
 			return self._unstuff(attr) >> 16
-		elif attr in _pmElemFormat.keys():
+		elif attr in list(_pmElemFormat.keys()):
 			# any other pm attribute -- just unstuff
 			return self._unstuff(attr)
 		else:
@@ -151,7 +151,7 @@ class PixMapWrapper:
 		if y2 == None:
 			dest[3] = y1 + src[3]-src[1]
 		if not port: port = Qd.GetPort()
-		print "blit port:", port
+		print("blit port:", port)
 		Qd.CopyBits(self.PixMap(), port.portBits, src, tuple(dest),
 				QuickDraw.srcCopy, None)
 
@@ -186,7 +186,7 @@ class PixMapWrapper:
 		# so convert if necessary
 		if format != imgformat.macrgb and format != imgformat.macrgb16:
 			# (LATER!)
-			raise "NotImplementedError", "conversion to macrgb or macrgb16"
+			raise("NotImplementedError", "conversion to macrgb or macrgb16")
 		self.data = s
 		self.bounds = (0,0,width,height)
 		self.cmpCount = 3
@@ -207,7 +207,7 @@ class PixMapWrapper:
 			return self.data
 		# otherwise, convert to the requested format
 		# (LATER!)
-			raise "NotImplementedError", "data format conversion"
+			raise("NotImplementedError", "data format conversion")
 
 	def fromImage(self,im):
 		"""Initialize this PixMap from a PIL Image object."""
--- src/piddle/aigen.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/aigen.py
@@ -344,7 +344,7 @@ class FontCache:
 		
 	def loadfont(self, fontname):
 		filename = AFMDIR + os.sep + fontname + '.afm'
-		print 'cache loading',filename
+		print('cache loading',filename)
 		assert os.path.exists(filename)
 		widths = parseAFMfile(filename)
 		self.__widtharrays[fontname] = widths
@@ -357,7 +357,7 @@ class FontCache:
 				return self.__widtharrays[fontname]
 			except:
 				# font not found, use Courier
-				print 'Font',fontname,'not found - using Courier for widths'
+				print('Font',fontname,'not found - using Courier for widths')
 				return self.getfont('courier')
 	
 
@@ -369,7 +369,7 @@ class FontCache:
 		return w
 	def status(self):
 		#returns loaded fonts
-		return self.__widtharrays.keys()
+		return list(self.__widtharrays.keys())
 		
 TheFontCache = FontCache()
 
@@ -443,8 +443,8 @@ class AIDocument:
 		self.transforms.originy = 0
 #		self.info.boundingBox = boundingbox
 		lx,ly, ux,uy, tx = boundingbox
-		print 'setBoundingBox', lx,ly, ux,uy, tx
-		print 'setBoundingBox', ux-lx,uy-ly
+		print('setBoundingBox', lx,ly, ux,uy, tx)
+		print('setBoundingBox', ux-lx,uy-ly)
 		self.info.pagesize = (ux-lx), (uy-ly)
 		##XXX If the ArtSize is smaller than Letter Freehand always draws the 
 		##XXX origin as if the Art board was Letter sized, however the arboard 
@@ -459,7 +459,7 @@ class AIDocument:
 #		print self.transforms
 #		print self.transforms.originx
 #		print self.transforms.originy
-		print 'setBoundingBox', lx,ly, ux,uy
+		print('setBoundingBox', lx,ly, ux,uy)
 		self.info.boundingBox = lx, ly, ux, uy
 		self.transforms.height = uy
 		
@@ -479,16 +479,16 @@ class AIDocument:
 	
 	def printXref(self):
 		self.startxref = sys.stdout.tell()
-		print 'xref'
-		print 0,len(self.objects) + 1
-		print '0000000000 65535 f'
+		print('xref')
+		print(0,len(self.objects) + 1)
+		print('0000000000 65535 f')
 		for pos in self.xref:
-			print '%0.10d 00000 n' % pos
+			print('%0.10d 00000 n' % pos)
 	
 	def printTrailer(self):
-		print '''%%PageTrailer
+		print('''%%PageTrailer
 gsave annotatepage grestore showpage
-%%Trailer'''
+%%Trailer''')
 #		print '<< /Size %d /Root %d 0 R /Info %d 0 R>>' % (len(self.objects) + 1, 1, self.infopos)
 #		print 'startxref'
 #		print self.startxref
@@ -496,7 +496,6 @@ gsave annotatepage grestore showpage
 	def printAI(self):
 		"prints it to standard output.  Logs positions for doing trailer"
 #		print "%AI-1.0"
-#		print "%<25><><EFBFBD><EFBFBD>"
 		i = 1
 		self.xref = []
 #		print self.objects
@@ -510,7 +509,7 @@ gsave annotatepage grestore showpage
 #			i = i + 1
 #		self.printXref()
 		self.printTrailer()
-		print "%%EOF",
+		print("%%EOF", end=' ')
 
 
 	def addPage(self, page):
@@ -570,10 +569,10 @@ class OutputGrabber:
 def testOutputGrabber():
 	gr = OutputGrabber()
 	for i in range(10):
-		print 'line',i
+		print('line',i)
 	data = gr.getData()
 	gr.close()
-	print 'Data...',data
+	print('Data...',data)
 	
 
 ##############################################################
@@ -587,7 +586,7 @@ def testOutputGrabber():
 class AIObject:
 	"Base class for all AI objects"
 	def printAI(self):
-		print '% base AI object'
+		print('% base AI object')
 	
 		
 class AILiteral(AIObject):
@@ -595,7 +594,7 @@ class AILiteral(AIObject):
 	def __init__(self, text):
 		self.text = text
 	def printAI(self):
-		print self.text
+		print(self.text)
 
 
 
@@ -608,7 +607,7 @@ class AICatalog(AIObject):
 /Outlines %d 0 R
 >>'''
 	def printAI(self):
-		print self.template % (self.RefPages, self.RefOutlines)
+		print(self.template % (self.RefPages, self.RefOutlines))
 
 class AIHeader(AIObject):
 	# no features implemented yet
@@ -622,26 +621,26 @@ class AIHeader(AIObject):
 		self.datestr = time.strftime("%x %I:%M %p", now)
 				
 	def printAI(self):
-		print "%!PS-Adobe-3.0"
-		print "%%Creator: PIDDLE Adobe Illustrator backend"
-		print "%%Title: " +'(%s)' % self.title
-		print "%%For: " +'(%s)' % self.author
-		print "%%CreationDate: " +'(%s)' % self.datestr
-		print "%%DocumentProcessColors: Black"""
-		print '%%BoundingBox: ' + '%s %s %s %s' % self.boundingBox
+		print("%!PS-Adobe-3.0")
+		print("%%Creator: PIDDLE Adobe Illustrator backend")
+		print("%%Title: " +'(%s)' % self.title)
+		print("%%For: " +'(%s)' % self.author)
+		print("%%CreationDate: " +'(%s)' % self.datestr)
+		print("%%DocumentProcessColors: Black""")
+		print('%%BoundingBox: ' + '%s %s %s %s' % self.boundingBox)
 		#%%DocumentProcessColors: Cyan Magenta Yellow
 		#%%DocumentCustomColors: (PANTONE 156 CV)
 		#%%RGBCustomColor: red green blue (customcolorname)
 		#%%DocumentFonts: CooperBlack
 		#%%+ Minion-Regular
 		#%%DocumentFiles: WrathOfRalph
-		print "%AI5_FileFormat 3"
-		print "%AI3_ColorUsage: Color"
-		print '%AI5_ArtSize: ' + '%s %s' % self.pagesize
-		print '%AI5_Templatebox: ' + '%s %s' % self.pagesize
+		print("%AI5_FileFormat 3")
+		print("%AI3_ColorUsage: Color")
+		print('%AI5_ArtSize: ' + '%s %s' % self.pagesize)
+		print('%AI5_Templatebox: ' + '%s %s' % self.pagesize)
 		#%AI7_ImageSettings: flag
-		print '%AI5_TargetResolution: 300'
-		print '%%EndComments'		
+		print('%AI5_TargetResolution: 300')
+		print('%%EndComments')		
 
 
 class AIProlog(AIObject):
@@ -649,18 +648,18 @@ class AIProlog(AIObject):
 	def __init__(self):
 		self.FontList = []
 	def printAI(self):
-		print '%%BeginProlog'
-		print '%%EndProlog'
+		print('%%BeginProlog')
+		print('%%EndProlog')
 
 class AISetUp(AIObject):
 	"null outline, does nothing yet"
 	def __init__(self):
 		self.FontList = []
 	def printAI(self):
-		print '%%BeginSetup'
+		print('%%BeginSetup')
 		if self.FontList:
 			pass
-		print '%%EndSetup'
+		print('%%EndSetup')
 	
 class AIPageCollection(AIObject):
 	"presumes PageList attribute set (list of integers)"
@@ -671,7 +670,7 @@ class AIPageCollection(AIObject):
 		for page in self.PageList:
 			result = result + str(page) + ' 0 R '
 		result = result + ']\n>>'
-		print result
+		print(result)
 
 #class AIBody(AIObject):
 #	"""The Bastard.  Needs list of Resources etc. Use a standard one for now.
@@ -776,14 +775,14 @@ class AIStream(AIObject):
 
 			
 #		print '<< /Length %d >>' % length
-		print '''%AI5_BeginLayer
+		print('''%AI5_BeginLayer
 1 1 1 1 0 0 0 79 128 255 Lb
-(Foreground) Ln'''
-		print self.transformAI(self.originx, self.originy, self.height)
+(Foreground) Ln''')
+		print(self.transformAI(self.originx, self.originy, self.height))
 
 #		print 'XXXX', self.data
-		print '''LB
-%AI5_EndLayer--'''
+		print('''LB
+%AI5_EndLayer--''')
 
 	def transformAI(self, ox, oy, ty):
 #		print 'transformAI', ox, oy
@@ -806,7 +805,7 @@ class AIStream(AIObject):
 			
 class AIImage(AIObject):
 	def printAI(self):
-		print """<<
+		print("""<<
 /Type /XObject
 /Subtype /Image
 /Name /Im0
@@ -823,7 +822,7 @@ stream
 B2BBC2 BB6F84 31BFC2 18EA3C 0E3E00 07FC00 03F800
 1E1800 1FF800>
 endstream
-endobj"""
+endobj""")
 			
 class AIType1Font(AIObject):
 	def __init__(self, key, font):
@@ -837,11 +836,11 @@ class AIType1Font(AIObject):
 /Encoding /WinAnsiEncoding
 >>"""
 	def printAI(self):
-		print self.template % (self.keyname, self.fontname)
+		print(self.template % (self.keyname, self.fontname))
 
 class AIProcSet(AIObject):
 	def printAI(self):
-		print "[/AI /Text]"
+		print("[/AI /Text]")
 
 
 
@@ -876,4 +875,4 @@ def MakeFontDictionary(startpos, count):
 	
 
 #if __name__ == '__main__':
-#	print 'For test scripts, run test1.py to test7.py'
\ No newline at end of file
+#	print 'For test scripts, run test1.py to test7.py'
--- src/piddle/discipline.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/discipline.py
@@ -4,28 +4,28 @@ from piddle import *
 def checkMethods(parentMethod, childMethod):
 	"Make sure the child's method obey's the parent's interface; return 1 if OK."
 	# get the parameter names
-	pf = parentMethod.func_code
-	cf = childMethod.func_code
+	pf = parentMethod.__code__
+	cf = childMethod.__code__
 	pargs = pf.co_varnames[:pf.co_argcount]
 	cargs = cf.co_varnames[:cf.co_argcount]
 	
 	# make sure they match, at least as far as the parent's go
 	if len(cargs) < len(pargs):
-		print "too few args"
+		print("too few args")
 		return 0	
 	for i in range(len(pargs)):
 		if pargs[i] != cargs[i]:
-			print "arg names don't match"
+			print("arg names don't match")
 			return 0
 
 	# if child has any additional arguments, make sure
 	# they have default values
 	extras = len(cargs) - len(pargs)
-	defs = childMethod.func_defaults
+	defs = childMethod.__defaults__
 	if extras and (defs is None or len(defs) < extras):
-		print "need %s defaults, got %s" % (extras, defs)
-		print cargs
-		print pargs
+		print("need %s defaults, got %s" % (extras, defs))
+		print(cargs)
+		print(pargs)
 		return 0
 	
 	# otherwise, it's OK
@@ -41,17 +41,17 @@ def checkClasses(parent, child):
 		if type(item) != MethodType or name[0] == '_':
 			pass  # print "     %s is not a public method" % name
 		elif name in parentDir:
-			if not checkMethods(getattr(parent, name).im_func, item.im_func):
-				print "NAUGHTY CHILD disobeys arguments to", name
+			if not checkMethods(getattr(parent, name).__func__, item.__func__):
+				print("NAUGHTY CHILD disobeys arguments to", name)
 			else:
-				print "     %s looks OK" % name
+				print("     %s looks OK" % name)
 		else:
-			print "     %s is unique to the child" % name
+			print("     %s is unique to the child" % name)
 
-foo = raw_input("backend to check (e.g., PDF):")
+foo = input("backend to check (e.g., PDF):")
 if foo:
 	canvasname = foo+"Canvas"
 	module = __import__("piddle"+foo, globals(), locals(), [canvasname] )
 	child = getattr(module, canvasname)
-	print "\nChecking %s...\n" % canvasname
+	print("\nChecking %s...\n" % canvasname)
 	checkClasses( Canvas, child )
--- src/piddle/pdfdoc.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/pdfdoc.py
@@ -18,7 +18,7 @@ import sys
 import string
 import time
 import tempfile
-import cStringIO
+import io
 from types import *
 from math import sin, cos, pi, ceil
 
@@ -152,10 +152,10 @@ class PDFDocument:
 
     
     def printTrailer(self):
-        print 'trailer'
-        print '<< /Size %d /Root %d 0 R /Info %d 0 R>>' % (len(self.objects) + 1, 1, self.infopos)
-        print 'startxref'
-        print self.startxref
+        print('trailer')
+        print(('<< /Size %d /Root %d 0 R /Info %d 0 R>>' % (len(self.objects) + 1, 1, self.infopos)))
+        print('startxref')
+        print((self.startxref))
 
     def writeTrailer(self, f):
         f.write('trailer' + LINEEND)
@@ -176,7 +176,6 @@ class PDFDocument:
         i = 1
         self.xref = []
         f.write("%PDF-1.2" + LINEEND)  # for CID support
-        f.write("%<25>춾" + LINEEND)
         for obj in self.objects:
             pos = f.tell()
             self.xref.append(pos)
@@ -201,20 +200,19 @@ class PDFDocument:
 
     def printPDF(self):
         "prints it to standard output.  Logs positions for doing trailer"
-        print "%PDF-1.0"
-        print "%<25>춾"
+        print("%PDF-1.0")
         i = 1
         self.xref = []
         for obj in self.objects:
             pos = sys.stdout.tell()
             self.xref.append(pos)
-            print i, '0 obj'
+            print(i, '0 obj')
             obj.printPDF()
-            print 'endobj'
+            print('endobj')
             i = i + 1
         self.printXref()
         self.printTrailer()
-        print "%%EOF",
+        print("%%EOF", end=' ')
 
     def addPage(self, page):
         """adds page and stream at end.  Maintains pages list"""
@@ -235,16 +233,16 @@ class PDFDocument:
         #self.objects.append(page.stream)
 
     def hasFont(self, psfontname):
-        return self.fontMapping.has_key(psfontname)
+        return psfontname in self.fontMapping
 
     def getInternalFontName(self, psfontname):
         try:
             return self.fontMapping[psfontname]
         except:
-            raise PDFError, "Font %s not available in document" % psfontname
+            raise PDFError("Font %s not available in document" % psfontname)
 
     def getAvailableFonts(self):
-        fontnames = self.fontMapping.keys()
+        fontnames = list(self.fontMapping.keys())
         fontnames.sort()
         return fontnames
     
@@ -284,10 +282,10 @@ class OutputGrabber:
 def testOutputGrabber():
     gr = OutputGrabber()
     for i in range(10):
-        print 'line',i
+        print('line',i)
     data = gr.getData()
     gr.close()
-    print 'Data...',data
+    print('Data...',data)
     
 
 ##############################################################
@@ -562,4 +560,4 @@ def MakeFontDictionary(startpos, count):
     return dict
         
 if __name__ == '__main__':
-    print 'For test scripts, run test1.py to test6.py'
+    print('For test scripts, run test1.py to test6.py')
--- src/piddle/pdfgen.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/pdfgen.py
@@ -53,7 +53,7 @@ import sys
 import string
 import time
 import tempfile
-import cStringIO
+import io
 from types import *
 from math import sin, cos, tan, pi, ceil
 
@@ -570,12 +570,12 @@ class Canvas:
         try: 
             import Image
         except ImportError:
-            print 'Python Imaging Library not available'
+            print('Python Imaging Library not available')
             return
         try:
             import zlib
         except ImportError:
-            print 'zlib not available'
+            print('zlib not available')
             return
             
         self._currentPageHasImages = 1
@@ -605,9 +605,9 @@ class Canvas:
                 #write in blocks of (??) 60 characters per line to a list
                 compressed = imageFile.read()
                 encoded = pdfutils._AsciiBase85Encode(compressed)
-                outstream = cStringIO.StringIO(encoded)
+                outstream = io.StringIO(encoded)
                 dataline = outstream.read(60)
-                while dataline <> "":
+                while dataline != "":
                     imagedata.append(dataline)
                     dataline = outstream.read(60)
                 imagedata.append('EI')
@@ -618,7 +618,7 @@ class Canvas:
                 cachedname = os.path.splitext(image)[0] + '.a85'
                 imagedata = open(cachedname,'rb').readlines()
                 #trim off newlines...
-                imagedata = map(string.strip, imagedata)
+                imagedata = list(map(string.strip, imagedata))
                 
                 #parse line two for width, height
                 words = string.split(imagedata[1])
@@ -643,9 +643,9 @@ class Canvas:
             encoded = pdfutils._AsciiBase85Encode(compressed) #...sadly this isn't
 
             #write in blocks of (??) 60 characters per line to a list
-            outstream = cStringIO.StringIO(encoded)
+            outstream = io.StringIO(encoded)
             dataline = outstream.read(60)
-            while dataline <> "":
+            while dataline != "":
                 imagedata.append(dataline)
                 dataline = outstream.read(60)
             imagedata.append('EI')
@@ -680,48 +680,48 @@ class Canvas:
     # This is based on Thomas Merz's code from GhostScript (viewjpeg.ps)
     def readJPEGInfo(self, image):
         "Read width, height and number of components from JPEG file"
-    	import struct
+        import struct
 
-	#Acceptable JPEG Markers:
-	#  SROF0=baseline, SOF1=extended sequential or SOF2=progressive
-	validMarkers = [0xC0, 0xC1, 0xC2]
+        #Acceptable JPEG Markers:
+        #  SROF0=baseline, SOF1=extended sequential or SOF2=progressive
+        validMarkers = [0xC0, 0xC1, 0xC2]
 
-	#JPEG markers without additional parameters
-	noParamMarkers = \
-	    [ 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0x01 ]
+        #JPEG markers without additional parameters
+        noParamMarkers = \
+            [ 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0x01 ]
 
-	#Unsupported JPEG Markers
-	unsupportedMarkers = \
-	    [ 0xC3, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCD, 0xCE, 0xCF ]
+        #Unsupported JPEG Markers
+        unsupportedMarkers = \
+            [ 0xC3, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCD, 0xCE, 0xCF ]
 
-	#read JPEG marker segments until we find SOFn marker or EOF
-	done = 0
-	while not done:
-	    x = struct.unpack('B', image.read(1))
-	    if x[0] == 0xFF:			#found marker
-	    	x = struct.unpack('B', image.read(1))
-		#print "Marker: ", '%0.2x' % x[0]
-		#check marker type is acceptable and process it
-		if x[0] in validMarkers:
-		    image.seek(2, 1)		#skip segment length
-		    x = struct.unpack('B', image.read(1)) #data precision
-		    if x[0] != 8:
-			raise 'PDFError', ' JPEG must have 8 bits per component'
-		    y = struct.unpack('BB', image.read(2))
-		    height = (y[0] << 8) + y[1] 
-		    y = struct.unpack('BB', image.read(2))
-		    width =  (y[0] << 8) + y[1]
-		    y = struct.unpack('B', image.read(1))
-		    color =  y[0]
-		    return width, height, color
-		    done = 1
-		elif x[0] in unsupportedMarkers:
-		    raise 'PDFError', ' Unsupported JPEG marker: %0.2x' % x[0]
-		elif x[0] not in noParamMarkers:
-		    #skip segments with parameters
-		    #read length and skip the data
-		    x = struct.unpack('BB', image.read(2))
-		    image.seek( (x[0] << 8) + x[1] - 2, 1)	
+        #read JPEG marker segments until we find SOFn marker or EOF
+        done = 0
+        while not done:
+            x = struct.unpack('B', image.read(1))
+            if x[0] == 0xFF:    #found marker
+                x = struct.unpack('B', image.read(1))
+                #print "Marker: ", '%0.2x' % x[0]
+                #check marker type is acceptable and process it
+                if x[0] in validMarkers:
+                    image.seek(2, 1)    #skip segment length
+                    x = struct.unpack('B', image.read(1)) #data precision
+                    if x[0] != 8:
+                        raise('PDFError', ' JPEG must have 8 bits per component')
+                    y = struct.unpack('BB', image.read(2))
+                    height = (y[0] << 8) + y[1] 
+                    y = struct.unpack('BB', image.read(2))
+                    width =  (y[0] << 8) + y[1]
+                    y = struct.unpack('B', image.read(1))
+                    color =  y[0]
+                    return width, height, color
+                    done = 1
+                elif x[0] in unsupportedMarkers:
+                    raise('PDFError', ' Unsupported JPEG marker: %0.2x' % x[0])
+                elif x[0] not in noParamMarkers:
+                    #skip segments with parameters
+                    #read length and skip the data
+                    x = struct.unpack('BB', image.read(2))
+                    image.seek((x[0] << 8) + x[1] - 2, 1)
 
     def setPageCompression(self, onoff=1):
         """Possible values 1 or 0 (1 for 'on' is the default).
@@ -763,17 +763,17 @@ class Canvas:
         if direction in [0,90,180,270]:
             direction_arg = '/Di /%d' % direction
         else:
-            raise 'PDFError', ' directions allowed are 0,90,180,270'
+            raise('PDFError', ' directions allowed are 0,90,180,270')
         
         if dimension in ['H', 'V']:
             dimension_arg = '/Dm /%s' % dimension
         else:
-            raise'PDFError','dimension values allowed are H and V'
+            raise('PDFError','dimension values allowed are H and V')
         
         if motion in ['I','O']:
             motion_arg = '/M /%s' % motion
         else:
-            raise'PDFError','motion values allowed are I and O'
+            raise('PDFError','motion values allowed are I and O')
 
 
         # this says which effects require which argument types from above
@@ -789,7 +789,7 @@ class Canvas:
         try:
             args = PageTransitionEffects[effectname]
         except KeyError:
-            raise 'PDFError', 'Unknown Effect Name "%s"' % effectname
+            raise('PDFError', 'Unknown Effect Name "%s"' % effectname)
             self._pageTransitionString = ''
             return
         
@@ -1033,7 +1033,7 @@ class PDFTextObject:
         if type(stuff) == StringType:
             lines = string.split(string.strip(stuff), '\n')
             if trim==1:
-                lines = map(string.strip,lines)
+                lines = list(map(string.strip,lines))
         elif type(stuff) == ListType:
             lines = stuff
         elif type(stuff) == TupleType:
@@ -1055,4 +1055,4 @@ class PDFTextObject:
 
 
 if __name__ == '__main__':
-    print 'For test scripts, run testpdfgen.py'
+    print('For test scripts, run testpdfgen.py')
--- src/piddle/pdfgeom.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/pdfgeom.py
@@ -10,7 +10,7 @@ So far, just Robert Kern's bezierArc.
 from math import sin, cos, pi, ceil
 
 def bezierArc(x1,y1, x2,y2, startAng=0, extent=90):
-    """bezierArc(x1,y1, x2,y2, startAng=0, extent=90) --> List of B<>zier
+    """bezierArc(x1,y1, x2,y2, startAng=0, extent=90) --> List of Bezier
 curve control points.
 
 (x1, y1) and (x2, y2) are the corners of the enclosing rectangle.  The
@@ -22,7 +22,7 @@ semi-circle.
 
 The resulting coordinates are of the form (x1,y1, x2,y2, x3,y3, x4,y4)
 such that the curve goes from (x1, y1) to (x4, y4) with (x2, y2) and
-(x3, y3) as their respective B<>zier control points."""
+(x3, y3) as their respective Bezier control points."""
 
     x1,y1, x2,y2 = min(x1,x2), max(y1,y2), max(x1,x2), min(y1,y2)
 
--- src/piddle/pdfmetrics.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/pdfmetrics.py
@@ -93,7 +93,7 @@ class FontCache:
         
     def loadfont(self, fontname):
         filename = AFMDIR + os.sep + fontname + '.afm'
-        print 'cache loading',filename
+        print('cache loading',filename)
         assert os.path.exists(filename)
         widths = parseAFMfile(filename)
         self.__widtharrays[fontname] = widths
@@ -107,7 +107,7 @@ class FontCache:
                 return self.__widtharrays[fontname]
             except:
                 # font not found, use Courier
-                print 'Font',fontname,'not found - using Courier for widths'
+                print('Font',fontname,'not found - using Courier for widths')
                 return self.getfont('courier')
     
 
@@ -120,7 +120,7 @@ class FontCache:
 
     def status(self):
         #returns loaded fonts
-        return self.__widtharrays.keys()
+        return list(self.__widtharrays.keys())
         
 TheFontCache = FontCache()
 
--- src/piddle/pdfutils.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/pdfutils.py
@@ -3,7 +3,7 @@
 
 import os
 import string
-import cStringIO
+import io
 
 LINEEND = '\015\012'
 
@@ -32,9 +32,9 @@ def cacheImageFile(filename):
     encoded = _AsciiBase85Encode(compressed) #...sadly this isn't
     
     #write in blocks of 60 characters per line
-    outstream = cStringIO.StringIO(encoded)
+    outstream = io.StringIO(encoded)
     dataline = outstream.read(60)
-    while dataline <> "":
+    while dataline != "":
         code.append(dataline)
         dataline = outstream.read(60)
     
@@ -45,7 +45,7 @@ def cacheImageFile(filename):
     f = open(cachedname,'wb')
     f.write(string.join(code, LINEEND)+LINEEND)
     f.close()
-    print 'cached image as %s' % cachedname
+    print('cached image as %s' % cachedname)
 
 
 def preProcessImages(spec):
@@ -54,14 +54,14 @@ def preProcessImages(spec):
     to save huge amounts of time when repeatedly building image
     documents."""
     import types
-    if type(spec) is types.StringType:
+    if type(spec) is bytes:
         filelist = glob.glob(spec)
     else:  #list or tuple OK
         filelist = spec
 
     for filename in filelist:
         if cachedImageExists(filename):
-            print 'cached version of %s already exists' % filename
+            print('cached version of %s already exists' % filename)
         else:
             cacheImageFile(filename)
         
@@ -111,7 +111,7 @@ def _AsciiHexEncode(input):
     """This is a verbose encoding used for binary data within
     a PDF file.  One byte binary becomes two bytes of ASCII."""
     "Helper function used by images"
-    output = cStringIO.StringIO()
+    output = io.StringIO()
     for char in input:
         output.write('%02x' % ord(char))
     output.write('>')
@@ -126,7 +126,7 @@ def _AsciiHexDecode(input):
     stripped = stripped[:-1]  #chop off terminator
     assert len(stripped) % 2 == 0, 'Ascii Hex stream has odd number of bytes'
     i = 0
-    output = cStringIO.StringIO()
+    output = io.StringIO()
     while i < len(stripped):
         twobytes = stripped[i:i+2]
         output.write(chr(eval('0x'+twobytes)))
@@ -136,21 +136,21 @@ def _AsciiHexDecode(input):
 
 def _AsciiHexTest(text='What is the average velocity of a sparrow?'):
     "Do the obvious test for whether Ascii Hex encoding works"
-    print 'Plain text:', text
+    print('Plain text:', text)
     encoded = _AsciiHexEncode(text)
-    print 'Encoded:', encoded
+    print('Encoded:', encoded)
     decoded = _AsciiHexDecode(encoded)
-    print 'Decoded:', decoded
+    print('Decoded:', decoded)
     if decoded == text:
-        print 'Passed'
+        print('Passed')
     else:
-        print 'Failed!'
+        print('Failed!')
     
 def _AsciiBase85Encode(input):
     """This is a compact encoding used for binary data within
     a PDF file.  Four bytes of binary data become five bytes of
     ASCII.  This is the default method used for encoding images."""
-    outstream = cStringIO.StringIO()
+    outstream = io.StringIO()
     # special rules apply if not a multiple of four bytes.  
     whole_word_count, remainder_size = divmod(len(input), 4)
     cut = 4 * whole_word_count
@@ -163,7 +163,7 @@ def _AsciiBase85Encode(input):
         b3 = ord(body[offset+2])
         b4 = ord(body[offset+3])
     
-        num = 16777216L * b1 + 65536 * b2 + 256 * b3 + b4
+        num = 16777216 * b1 + 65536 * b2 + 256 * b3 + b4
 
         if num == 0:
             #special case
@@ -194,7 +194,7 @@ def _AsciiBase85Encode(input):
         b3 = ord(lastbit[2])
         b4 = ord(lastbit[3])
 
-        num = 16777216L * b1 + 65536 * b2 + 256 * b3 + b4
+        num = 16777216 * b1 + 65536 * b2 + 256 * b3 + b4
 
         #solve for c1..c5
         temp, c5 = divmod(num, 85)
@@ -217,7 +217,7 @@ def _AsciiBase85Encode(input):
 def _AsciiBase85Decode(input):
     """This is not used - Acrobat Reader decodes for you - but a round
     trip is essential for testing."""
-    outstream = cStringIO.StringIO()
+    outstream = io.StringIO()
     #strip all whitespace
     stripped = string.join(string.split(input),'')
     #check end
@@ -229,7 +229,7 @@ def _AsciiBase85Decode(input):
     # special rules apply if not a multiple of five bytes.  
     whole_word_count, remainder_size = divmod(len(stripped), 5)
     #print '%d words, %d leftover' % (whole_word_count, remainder_size)
-    assert remainder_size <> 1, 'invalid Ascii 85 stream!'
+    assert remainder_size != 1, 'invalid Ascii 85 stream!'
     cut = 5 * whole_word_count
     body, lastbit = stripped[0:cut], stripped[cut:]
     
@@ -301,14 +301,14 @@ def _wrap(input, columns=60):
 
 def _AsciiBase85Test(text='What is the average velocity of a sparrow?'):
     "Do the obvious test for whether Base 85 encoding works"
-    print 'Plain text:', text
+    print('Plain text:', text)
     encoded = _AsciiBase85Encode(text)
-    print 'Encoded:', encoded
+    print('Encoded:', encoded)
     decoded = _AsciiBase85Decode(encoded)
-    print 'Decoded:', decoded
+    print('Decoded:', decoded)
     if decoded == text:
-        print 'Passed'
+        print('Passed')
     else:
-        print 'Failed!'
+        print('Failed!')
 
 
--- src/piddle/piddle.py.orig	2002-06-03 13:48:50 UTC
+++ src/piddle/piddle.py
@@ -143,7 +143,7 @@ class Color:
 		d["blue"] = _float(blue)
 
 	def __setattr__(self, name, value):
-		raise TypeError, "piddle.Color has read-only attributes"
+		raise TypeError("piddle.Color has read-only attributes")
 
 	def __mul__(self,x):
 		return Color(self.red*x, self.green*x, self.blue*x)
@@ -369,7 +369,7 @@ class Font:
                                          self.underline, repr(self.face))
 
     def __setattr__(self, name, value):
-        raise TypeError, "piddle.Font has read-only attributes"
+        raise TypeError("piddle.Font has read-only attributes")
 
 
 #-------------------------------------------------------------------------
@@ -453,25 +453,23 @@ class Canvas:
                 but which might be buffered should be flushed to the screen"
 		pass
 
-        def save(self, file=None, format=None):
+	def save(self, file=None, format=None):
 
-                """For backends that can be save to a file or sent to a
-                stream, create a valid file out of what's currently been
-                drawn on the canvas.  Trigger any finalization here.
-                Though some backends may allow further drawing after this call,
-                presume that this is not possible for maximum portability
+		"""For backends that can be save to a file or sent to a
+		stream, create a valid file out of what's currently been
+		drawn on the canvas.  Trigger any finalization here.
+		Though some backends may allow further drawing after this call,
+		presume that this is not possible for maximum portability
 
-                file may be either a string or a file object with a write method
-                     if left as the default, the canvas's current name will be used
+		file may be either a string or a file object with a write method
+		     if left as the default, the canvas's current name will be used
 
-                format may be used to specify the type of file format to use as
-                     well as any corresponding extension to use for the filename
-                     This is an optional argument and backends may ignore it if
-                     they only produce one file format."""
-                pass 
+		format may be used to specify the type of file format to use as
+		     well as any corresponding extension to use for the filename
+		     This is an optional argument and backends may ignore it if
+		     they only produce one file format."""
+		pass 
 
-                                
-	
 	def setInfoLine(self, s):
 		"For interactive Canvases, displays the given string in the \
 		'info line' somewhere where the user can probably see it."
@@ -481,7 +479,7 @@ class Canvas:
 	def stringWidth(self, s, font=None):
 		"Return the logical width of the string if it were drawn \
 		in the current font (defaults to self.font)."
-		raise NotImplementedError, 'stringWidth'
+		raise NotImplementedError('stringWidth')
 	
 	def fontHeight(self, font=None):
 		"Find the height of one line of text (baseline to baseline) of the given font."
@@ -492,11 +490,11 @@ class Canvas:
 		
 	def fontAscent(self, font=None):
 		"Find the ascent (height above base) of the given font."
-		raise NotImplementedError, 'fontAscent'
+		raise NotImplementedError('fontAscent')
 	
 	def fontDescent(self, font=None):
 		"Find the descent (extent below base) of the given font."
-		raise NotImplementedError, 'fontDescent'		
+		raise NotImplementedError('fontDescent')
 		
 	#------------- drawing helpers --------------
 
@@ -602,7 +600,7 @@ class Canvas:
 
 	def drawLine(self, x1,y1, x2,y2, color=None, width=None):
 		"Draw a straight line between x1,y1 and x2,y2."
-		raise NotImplementedError, 'drawLine'
+		raise NotImplementedError('drawLine')
 	
 	def drawLines(self, lineList, color=None, width=None):
 		"Draw a set of lines of uniform color and width.  \
@@ -617,7 +615,7 @@ class Canvas:
 	def drawString(self, s, x,y, font=None, color=None, angle=0):
 		"Draw a string starting at location x,y."
 		# NOTE: the baseline goes on y; drawing covers (y-ascent,y+descent)
-		raise NotImplementedError, 'drawString'
+		raise NotImplementedError('drawString')
 
 
 	#	For fillable shapes, edgeColor defaults to self.defaultLineColor,
@@ -627,7 +625,7 @@ class Canvas:
 
 	def drawCurve(self, x1,y1, x2,y2, x3,y3, x4,y4, 
 				edgeColor=None, edgeWidth=None, fillColor=None, closed=0):
-		"Draw a B<>zier curve with control points x1,y1 to x4,y4."
+		"Draw a Bezier curve with control points x1,y1 to x4,y4."
 
 		pointlist = self.curvePoints(x1, y1, x2, y2, x3, y3, x4, y4)
 		self.drawPolygon(pointlist,
@@ -697,7 +695,7 @@ class Canvas:
 		pointlist: a list of (x,y) tuples defining vertices
 		closed: if 1, adds an extra segment connecting the last point to the first
 		"""
-		raise NotImplementedError, 'drawPolygon'
+		raise NotImplementedError('drawPolygon')
 	
 	def drawFigure(self, partList,
 				edgeColor=None, edgeWidth=None, fillColor=None, closed=0):
@@ -719,7 +717,7 @@ class Canvas:
 			elif op == figureCurve:
 				pointList.extend(apply(self.curvePoints,args))
 			else:
-				raise TypeError, "unknown figure operator: "+op
+				raise TypeError("unknown figure operator: ", op)
 	
 		self.drawPolygon(pointList, edgeColor, edgeWidth, fillColor, closed=closed)
 
@@ -729,7 +727,7 @@ class Canvas:
 	def drawImage(self, image, x1,y1, x2=None,y2=None):
 		"""Draw a PIL Image into the specified rectangle.  If x2 and y2 are
 		omitted, they are calculated from the image size."""
-		raise NotImplementedError, 'drawImage'
+		raise NotImplementedError('drawImage')
 
 
 
@@ -748,9 +746,9 @@ def getFileObject(file):
                         if hasattr(file, "write"):
                                 fileobj = file
                         else:
-                                raise 'Invalid file argument to save'
+                                raise('Invalid file argument to save')
         else:
-                raise 'Invalid file argument to save'
+                raise('Invalid file argument to save')
         
         return fileobj
 
--- src/piddle/piddleAI.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleAI.py
@@ -19,7 +19,7 @@ from piddle import *
 import aigen
 import string
 import zlib
-import cStringIO
+import io
 
 from math import sin, cos, pi, ceil
 
@@ -35,7 +35,7 @@ class AICanvas(Canvas):
 
 	def __init__(self, size=(0,0), name='piddle.ai'):
 		Canvas.__init__(self, size, name=name)
-		print name
+		print(name)
 		if name[-3:] == '.ai':
 			self.name = name
 		else:
@@ -91,7 +91,7 @@ class AICanvas(Canvas):
 		self.setBoundingBox()
 		stream = self.winding + '\n' + self.winOrder
 		stream = [stream] + self.code
- 		self.doc.setPage(stream)
+		self.doc.setPage(stream)
 
 	def save(self, file=None, format=None):
 		"""Saves the file.  If holding data, do
@@ -99,7 +99,7 @@ class AICanvas(Canvas):
 		if len(self.code):  
 			self.showPage()
 		self.doc.SaveToFile(self.name)
-		print 'saved', self.name
+		print('saved', self.name)
 
 
 
@@ -428,7 +428,7 @@ class AICanvas(Canvas):
 			sl.append('l')
 #			print sl
 #			print sk
-			if i <> 0:
+			if i != 0:
 				self.code.append(tuple(sl))
 			self.code.append(tuple(sk))
 
@@ -474,10 +474,10 @@ class AICanvas(Canvas):
 			edgeWidth=None, fillColor=None, closed=0):
 		start = pointlist[0]
 		pointlist = pointlist[1:]
-		x1 = min(map(lambda (x,y) : x, pointlist))
-		x2 = max(map(lambda (x,y) : x, pointlist))
-		y1 = min(map(lambda (x,y) : y, pointlist))
-		y2 = max(map(lambda (x,y) : y, pointlist))
+		x1 = min([x_y[0] for x_y in pointlist])
+		x2 = max([x_y1[0] for x_y1 in pointlist])
+		y1 = min([x_y2[1] for x_y2 in pointlist])
+		y2 = max([x_y3[1] for x_y3 in pointlist])
 		self._updateFillColor(fillColor)
 		self._updateLineWidth(edgeWidth)
 		self._updateLineColor(edgeColor)
@@ -505,7 +505,7 @@ class AICanvas(Canvas):
 
 
 	def drawString():
-		print "Sorry Not yet impemented"
+		print("Sorry Not yet impemented")
 
 
 
--- src/piddle/piddleFIG.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleFIG.py
@@ -363,7 +363,7 @@ class FIGCanvas(Canvas):
 
     def clear(self):
         """Reset canvas to its default state."""
-        raise NotImplementedError, "clear"
+        raise NotImplementedError("clear")
 
     def save(self, file=None, format=None):
         """Write the current document to a file or stream and close the file.
@@ -472,7 +472,7 @@ class FIGCanvas(Canvas):
             }
         self.code.append(code)
         line = []
-        pointlist = map(lambda p, f=bp: (p[0]*bp, p[1]*bp), pointlist)
+        pointlist = list(map(lambda p, f=bp: (p[0]*bp, p[1]*bp), pointlist))
         for coords in pointlist:
             code = self.coord_fmt % coords
             line.append(code)
@@ -537,7 +537,7 @@ class FIGCanvas(Canvas):
         self.code.append(code)
         code = []
         pointlist = [(x1, y1), (x1, y2), (x2, y2), (x2, y1), (x1, y1)]
-        pointlist = map(lambda p, f=bp: (p[0]*bp, p[1]*bp), pointlist)
+        pointlist = list(map(lambda p, f=bp: (p[0]*bp, p[1]*bp), pointlist))
         for coords in pointlist:
             code.append(self.coord_fmt % coords)
         code = " ".join(code)
--- src/piddle/piddleGL.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleGL.py
@@ -61,7 +61,7 @@ try:
         def vertexCB(self, O):
             glVertex2d(O[0], O[1])
         def combineCB(self, p1, p2, p3):
-            print len(p3)
+            print(len(p3))
             return p3[0][-1]
         def edgeFlagCB(self, *args):
             pass
@@ -149,7 +149,7 @@ class _GLCanvas(Canvas):
                 glCallList(list)
             else:
                 func, args, kw = list
-                apply(func, args, kw)
+                func(*args, **kw)
         glFlush()
         
     def drawLine(self, x1,y1, x2,y2, color=None, width=None):
@@ -274,7 +274,7 @@ class _GLCanvas(Canvas):
             try:
                 import Image
             except ImportError:
-                raise ImportError, 'Saving to a non-PPM format is not available because PIL is not installed'
+                raise ImportError('Saving to a non-PPM format is not available because PIL is not installed')
             savefname = base+'.ppm'
             glSavePPM(savefname, self._width, self._height)
             i = Image.open(savefname)
@@ -357,7 +357,7 @@ def getGLTTFontWrapper():
             if face is None: face = 'arial'
             face = string.lower(face)
             self.face = face
-            if self.maps.has_key(face):
+            if face in self.maps:
                 face = self.maps[face]
             if bold:
                 if italic:
@@ -421,16 +421,16 @@ try:
             pass
 
         def keyboard(*args):
-            print args
+            print(args)
 
         def mainloop(self):
             glutMainLoop()
-    if _debug: print "# GlutCanvas available"
+    if _debug: print("# GlutCanvas available")
 except NameError:
     pass
 
 try:
-    import Tkinter
+    import tkinter
     from OpenGL.Tk import RawOpengl
     class TkInteractive:
         def __init__(self):
@@ -463,7 +463,7 @@ try:
                    'height':height})
             self._width = width
             self._height = height
-            apply(RawOpengl.__init__, (self,), kw)
+            RawOpengl.__init__(*(self,), **kw)
             _GLCanvas.__init__(self, size=size, name=name)
             TkInteractive.__init__(self)
             self.bind('<Configure>', self.resize)
@@ -474,7 +474,7 @@ try:
             self.configure(width=w, height=h)
             self._width = w
             self._height= h 
-            Tkinter.Frame.configure(self)
+            tkinter.Frame.configure(self)
 
         def redraw(self):
             if self._inList: self._saveList()
@@ -489,7 +489,7 @@ try:
 
         def setInfoLine(self, s):
             pass
-    if _debug: print "# ToglCanvas available"
+    if _debug: print("# ToglCanvas available")
 except ImportError:
     pass
 
@@ -498,7 +498,7 @@ try:
 except NameError:
     GLCanvas = GlutCanvas
 except NameError:
-    raise ImportError, "Couldn't get either GLUT or Togl loaded"
+    raise ImportError("Couldn't get either GLUT or Togl loaded")
 
 def getGLUTFontWrapper():
     class GLUTFontWrapper:
@@ -516,7 +516,7 @@ def getGLUTFontWrapper():
             self.size=font.size
             if face is None: face = 'glutStrokeRomanFixed'
             face = string.lower(face)
-            if self.maps.has_key(face):
+            if face in self.maps:
                 face = self.maps[face]
             self.glutface = face
         def stringWidth(self, s):
@@ -562,6 +562,6 @@ except ImportError:
 
 if _debug:
     if FontSupport == 0:	
-        print "# Can't find font support"
+        print("# Can't find font support")
     else:
-        print "# Using fonts from:", FontWrapper.__name__
+        print("# Using fonts from:", FontWrapper.__name__)
--- src/piddle/piddleGTK/core.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleGTK/core.py
@@ -98,7 +98,7 @@ class BasicCanvas(piddle.Canvas):
         # and make sure the canvas is big enough:
         iwidth = iheight = 0
         for i in range(len(lineList)):
-            x1, y1, x2, y2 = map(int, map(round, lineList[i]))
+            x1, y1, x2, y2 = list(map(int, list(map(round, lineList[i]))))
             iwidth = max(iwidth, x1, x2)
             iheight = max(iheight, y1, y2)
         #
@@ -120,7 +120,7 @@ class BasicCanvas(piddle.Canvas):
             return
         angle = int(round(angle))
         if angle != 0:
-            raise NotImplementedError, "rotated text not implemented"
+            raise NotImplementedError("rotated text not implemented")
         if font is None:
             font = self.defaultFont
         lines = string.split(s, "\n")
@@ -163,7 +163,7 @@ class BasicCanvas(piddle.Canvas):
     def drawPolygon(self, pointlist, edgeColor=None, edgeWidth=None,
                     fillColor=None, closed=0):
         if len(pointlist) < 3:
-            raise ValueError, "too few points in the point list"
+            raise ValueError("too few points in the point list")
         # XXX lots more should be checked
         if edgeColor is None:
             edgeColor = self.defaultLineColor
@@ -227,7 +227,7 @@ class BasicCanvas(piddle.Canvas):
     def ensure_size(self, width, height):
         # like __ensure_size(), but doesn't return buffer
         if (width <= 0) or (height <= 0):
-            raise ValueError, "width and height must both be positive"
+            raise ValueError("width and height must both be positive")
         self.__ensure_size(width, height)
 
 
@@ -303,7 +303,7 @@ def _font_to_gdkfont(font):
     try:
         return _xlfd_to_gdkfont(xlfd)
     except RuntimeError:
-        print "failed to load", xlfd
+        print("failed to load", xlfd)
         raise
 
 
--- src/piddle/piddleGTK/tests.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleGTK/tests.py
@@ -36,8 +36,8 @@ def main():
     top.add(bbox)
     top.connect("destroy", gtk.mainquit)
     top.connect("delete_event", gtk.mainquit)
-    tests = map((lambda test: (string.capitalize(test.__name__), test)),
-                piddletest.tests)
+    tests = list(map((lambda test: (string.capitalize(test.__name__), test)),
+                piddletest.tests))
     tests.extend(testitems)
     for name, test in tests:
         b = gtk.GtkButton(name)
@@ -118,7 +118,7 @@ def font_mapping(canvasClass):
         key = piddleGTK.core._font_to_key(font)
         xlfd = piddleGTK.core._fontkey_to_xlfd(key)
         f.write("%s\n" % font)
-        f.write("    %s\n" % `key`)
+        f.write("    %s\n" % repr(key))
         f.write("    %s\n\n" % xlfd)
     # just have to have a .flush() method:
     return f
@@ -143,7 +143,7 @@ def onOver(canvas, x, y):
     canvas.setInfoLine("onOver(%s, %s)" % (x, y))
 
 def onKey(canvas, key, modifiers):
-    canvas.setInfoLine("onKey(%s, %s)" % (`key`, modifiers))
+    canvas.setInfoLine("onKey(%s, %s)" % (repr(key), modifiers))
 
 
 
--- src/piddle/piddlePDF.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddlePDF.py
@@ -16,7 +16,7 @@ self.pdf which offers numerous lower-level drawing rou
 
 #standard python library modules
 import string
-import cStringIO
+import io
 import pdfmetrics
 import glob
 import os
@@ -134,7 +134,7 @@ class PDFCanvas(Canvas):
                
         #if they specified a size smaller than page,
         # be helpful and centre their diagram
-        if self.pagesize <> self.drawingsize:
+        if self.pagesize != self.drawingsize:
             dx = 0.5 * (self.pagesize[0] - self.drawingsize[0])
             dy = 0.5 * (self.pagesize[1] - self.drawingsize[1])
             self.pdf.translate(dx, dy)
@@ -183,7 +183,7 @@ class PDFCanvas(Canvas):
             
         if hasattr(file, 'write'):
             self.pdf.save(fileobj=file)
-        elif isinstance(file, types.StringType):
+        elif isinstance(file, bytes):
             self.pdf.save(filename=file)
         else:
             self.pdf.save()
@@ -236,7 +236,7 @@ class PDFCanvas(Canvas):
             face = 'serif'
         else:
             face = string.lower(font.face)
-        while font_face_map.has_key(face):
+        while face in font_face_map:
             face = font_face_map[face]
         #step 2, - resolve bold/italic to get the right PS font name
         psname = ps_font_map[(face, font.bold, font.italic)]
@@ -305,8 +305,8 @@ class PDFCanvas(Canvas):
         else:
             self.pdf.drawPath(
                         path,
-                        (edge <> transparent),  #whether to stroke
-                        (fill <> transparent)   #whether to fill
+                        (edge != transparent),  #whether to stroke
+                        (fill != transparent)   #whether to fill
                         )
         
     #------------- drawing methods --------------
@@ -372,7 +372,7 @@ class PDFCanvas(Canvas):
             # inserting basic commands here  to see if can get working
             textobj = self.pdf.beginText()
 
-            if col <> self.defaultFillColor:
+            if col != self.defaultFillColor:
                 textobj.setFillColorRGB(col.red,col.green, col.blue)
 
             if angle != 0 :
--- src/piddle/piddlePIL.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddlePIL.py
@@ -42,10 +42,10 @@ else:
 # load font metrics
 try:
     f = open(os.path.join(_fontprefix,'metrics.dat'), 'rb')
-    import cPickle
-    _widthmaps = cPickle.load(f)
-    _ascents = cPickle.load(f)
-    _descents = cPickle.load(f)
+    import pickle
+    _widthmaps = pickle.load(f)
+    _ascents = pickle.load(f)
+    _descents = pickle.load(f)
     f.close()
 except:
     Log.write("Warning: unable to load font metrics!\n")
@@ -86,12 +86,12 @@ def _matchingFontPath(font):
     if type(face) == StringType:
         path = _pilFontPath(face,size,font.bold)
         path = string.split(path,os.sep)[-1]
-        if path in _widthmaps.keys(): return path
+        if path in list(_widthmaps.keys()): return path
     else:
         for item in font.face:
             path = _pilFontPath(item,size,font.bold)
             path = string.split(path,os.sep)[-1]
-            if path in _widthmaps.keys(): return path
+            if path in list(_widthmaps.keys()): return path
     # not found?  Try it with courier, which should always be there
     path = _pilFontPath('courier',size,font.bold)
     return string.split(path,os.sep)[-1]
@@ -126,7 +126,7 @@ class PILCanvas( Canvas ):
         self._pen = ImageDraw.ImageDraw(self._image)
         self._pen.setink(0)
         self._setFont( Font() )
-        self._pilversion = map(string.atoi, string.split(Image.VERSION, "."))
+        self._pilversion = list(map(string.atoi, string.split(Image.VERSION, ".")))
         Canvas.__init__(self, size, name)
         
     def __setattr__(self, attribute, value):
@@ -157,7 +157,7 @@ class PILCanvas( Canvas ):
                 # below here, file is guaranteed to be a string
         if format == None:
             if '.' not in file:
-                raise TypeError, 'no file type given to save()'
+                raise TypeError('no file type given to save()')
             filename = file
         else:
             filename = file + '.' + format
@@ -344,7 +344,8 @@ class PILCanvas( Canvas ):
         temppen = ImageDraw.ImageDraw(tempimg)
         temppen.setink( (255,255,255) )
         pilfont = _pilFont(font)
-        if not pilfont: raise "bad font!", font
+        if not pilfont:
+            raise("bad font!", font)
         temppen.setfont( pilfont )
         pos = [4, int(tempsize/2 - self.fontAscent(font)) - self.fontDescent(font)]
         temppen.text( pos, s )
@@ -391,8 +392,8 @@ def test():
     canvas = PILCanvas()
 
     canvas.defaultLineColor = Color(0.7,0.7,1.0)    # light blue
-    canvas.drawLines( map(lambda i:(i*10,0,i*10,300), range(30)) )
-    canvas.drawLines( map(lambda i:(0,i*10,300,i*10), range(30)) )
+    canvas.drawLines( [(i*10,0,i*10,300) for i in range(30)] )
+    canvas.drawLines( [(0,i*10,300,i*10) for i in range(30)] )
     canvas.defaultLineColor = black     
     
     canvas.drawLine(10,200, 20,190, color=red)
--- src/piddle/piddlePS.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddlePS.py
@@ -38,7 +38,7 @@ piddlePS - a PostScript backend for the PIDDLE drawing
 
 
 from piddle import *
-import string, cStringIO
+import string, io
 import piddlePSmetrics # for font info
 import math
 
@@ -309,7 +309,7 @@ translate
         # once again, fall back to default, redundant, no?
         face = string.lower(PiddleLegalFonts["serif"])  
         for reqFace in requested:
-            if PiddleLegalFonts.has_key(string.lower(reqFace)):
+            if string.lower(reqFace) in PiddleLegalFonts:
                 face = string.lower(PiddleLegalFonts[string.lower(reqFace)])
                 break
 
@@ -591,7 +591,7 @@ translate
                self.code.extend([
                   'gsave',
                   '%s %s neg translate' % (x,y),
-                  `angle`+' rotate'])
+                  repr(angle)+' rotate'])
                down = 0
                for line in lines :
                   self._drawStringOneLine(line, 0, 0+down, font, color, angle)
@@ -770,7 +770,7 @@ translate
                    figureCode.append("%s %s neg lineto" % tuple(args[:2]))
                figureCode.append("%s %s neg %s %s neg %s %s neg curveto" % tuple(args[2:]))
            else:
-               raise TypeError, "unknown figure operator: "+op
+               raise TypeError("unknown figure operator: "+op)
 
        if closed:
            figureCode.append("closepath")
@@ -798,10 +798,10 @@ translate
        try:
            import Image
        except ImportError:
-           print 'Python Imaging Library not available'
+           print('Python Imaging Library not available')
            return
        # For now let's start with 24 bit RGB images (following piddlePDF again)
-       print "Trying to drawImage in piddlePS"
+       print("Trying to drawImage in piddlePS")
        component_depth = 8
        myimage = image.convert('RGB')
        imgwidth, imgheight = myimage.size
@@ -811,7 +811,7 @@ translate
             y2 = y1 + imgheight
        drawwidth = x2 - x1
        drawheight = y2 - y1
-       print 'Image size (%d, %d); Draw size (%d, %d)' % (imgwidth, imgheight, drawwidth, drawheight)
+       print('Image size (%d, %d); Draw size (%d, %d)' % (imgwidth, imgheight, drawwidth, drawheight))
        # now I need to tell postscript how big image is
 
        # "image operators assume that they receive sample data from
@@ -851,15 +851,15 @@ translate
        # piddlePDF again
 
        rawimage = myimage.tostring()
-       assert(len(rawimage) == imgwidth*imgheight, 'Wrong amount of data for image') 
+       assert(len(rawimage) == imgwidth*imgheight, 'Wrong amount of data for image')
        #compressed = zlib.compress(rawimage) # no zlib at moment
        hex_encoded = self._AsciiHexEncode(rawimage)
        
        # write in blocks of 78 chars per line
-       outstream = cStringIO.StringIO(hex_encoded)
+       outstream = io.StringIO(hex_encoded)
 
        dataline = outstream.read(78)
-       while dataline <> "":
+       while dataline != "":
            self.code.append(dataline)
            dataline= outstream.read(78)
        self.code.append('% end of image data') # for clarity
@@ -870,7 +870,7 @@ translate
        
     def _AsciiHexEncode(self, input):  # also based on piddlePDF
         "Helper function used by images"
-        output = cStringIO.StringIO()
+        output = io.StringIO()
         for char in input:
             output.write('%02x' % ord(char))
         output.reset()
@@ -880,7 +880,7 @@ translate
         try:
             import Image
         except ImportError:
-            print 'Python Imaging Library not available'
+            print('Python Imaging Library not available')
             return
                # I don't have zlib -cwl
 #         try:
@@ -892,12 +892,12 @@ translate
 
         ### what sort of image are we to draw
         if image.mode=='L' :
-            print 'found image.mode= L'
+            print('found image.mode= L')
             imBitsPerComponent = 8
             imNumComponents = 1
             myimage = image 
         elif image.mode == '1':
-            print 'found image.mode= 1'
+            print('found image.mode= 1')
             myimage = image.convert('L')
             imNumComponents = 1
             myimage = image 
@@ -923,7 +923,7 @@ translate
             self.code.append('/DeviceRGB setcolorspace')
         elif imNumComponents == 1 :
             self.code.append('/DeviceGray setcolorspace')
-            print 'setting colorspace gray'
+            print('setting colorspace gray')
         # create the image dictionary
         self.code.append("""
 <<
@@ -942,15 +942,15 @@ translate
                           'image'])
         # after image operator just need to dump image dat to file as hexstring
         rawimage = myimage.tostring()
-        assert(len(rawimage) == imwidth*imheight, 'Wrong amount of data for image') 
+        assert(len(rawimage) == imwidth*imheight, 'Wrong amount of data for image')
         #compressed = zlib.compress(rawimage) # no zlib at moment
         hex_encoded = self._AsciiHexEncode(rawimage)
        
         # write in blocks of 78 chars per line
-        outstream = cStringIO.StringIO(hex_encoded)
+        outstream = io.StringIO(hex_encoded)
 
         dataline = outstream.read(78)
-        while dataline <> "":
+        while dataline != "":
             self.code.append(dataline)
             dataline= outstream.read(78)
         self.code.append('> % end of image data') # > is EOD for hex encoded filterfor clarity
--- src/piddle/piddlePSmetrics.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddlePSmetrics.py
@@ -125,7 +125,7 @@ class FontCache:
         
     def loadfont(self, fontname):
         filename = AFMDIR + os.sep + fontname + '.afm'
-        print 'cache loading',filename
+        print('cache loading',filename)
         assert os.path.exists(filename)
         widths = parseAFMfile(filename)
         self.__widtharrays[fontname] = widths
@@ -139,7 +139,7 @@ class FontCache:
                 return self.__widtharrays[fontname]
             except:
                 # font not found, use Courier
-                print 'Font',fontname,'not found - using Courier for widths'
+                print('Font',fontname,'not found - using Courier for widths')
                 return self.getfont('courier')
     
 
@@ -152,7 +152,7 @@ class FontCache:
 
     def status(self):
         #returns loaded fonts
-        return self.__widtharrays.keys()
+        return list(self.__widtharrays.keys())
         
 TheFontCache = FontCache()
 
@@ -168,7 +168,7 @@ def psStringWidth(text, font, encoding):
     try:
         widths = _psWidths[encoding][string.lower(font) ]
     except:
-        raise KeyError, "Improper encoding %s or font name %s" % (encoding, font)
+        raise KeyError("Improper encoding %s or font name %s" % (encoding, font))
     w = 0
     for char in text:
         w = w + widths[ord(char)]
--- src/piddle/piddleQD.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleQD.py
@@ -63,7 +63,7 @@ _curCanvas = None
 
 # global dictionary mapping font names to QD font IDs
 _fontMap = {}
-for item in filter(lambda x:x[0]!='_',dir(Fonts)):
+for item in [x for x in dir(Fonts) if x[0]!='_']:
 	_fontMap[string.lower(item)] = Fonts.__dict__[item]
 _fontMap['system'] = Fonts.kFontIDGeneva
 _fontMap['monospaced'] = Fonts.kFontIDMonaco
@@ -248,7 +248,7 @@ class QDCanvas( Canvas ):
 					return 0	# font not found!
 
 			# cache the fontID for quicker reference next time!
-                        font.__dict__['_QDfontID'] = fontID
+			font.__dict__['_QDfontID'] = fontID
 			# font._QDfontID = fontID
 			Qd.TextFont(fontID)
 		
@@ -569,19 +569,19 @@ def test():
 	#import Image
 	#canvas.drawImage( Image.open(path), 0,0,300,300 );
 
-	def myOnClick(canvas,x,y): print "clicked %s,%s" % (x,y)
+	def myOnClick(canvas,x,y): print("clicked %s,%s" % (x,y))
 	canvas.onClick = myOnClick
 
 	def myOnOver(canvas,x,y): canvas.setInfoLine( "mouse is over %s,%s" % (x,y) )
 
 	canvas.onOver = myOnOver
 
-	def myOnKey(canvas,key,mods): print "pressed %s with modifiers %s" % (key,mods)
+	def myOnKey(canvas,key,mods): print("pressed %s with modifiers %s" % (key,mods))
 	canvas.onKey = myOnKey
 	
 
-	canvas.drawLines( map(lambda i:(i*10,0,i*10,300), range(30)) )
-	canvas.drawLines( map(lambda i:(0,i*10,300,i*10), range(30)) )
+	canvas.drawLines( [(i*10,0,i*10,300) for i in range(30)] )
+	canvas.drawLines( [(0,i*10,300,i*10) for i in range(30)] )
 	canvas.defaultLineColor = black		
 	
 	canvas.drawLine(10,200, 20,190, color=red)
--- src/piddle/piddleSVG/piddleSVG.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleSVG/piddleSVG.py
@@ -72,7 +72,7 @@ def _PointListToSVG(points,dupFirst=0):
 
   """
   outStr = ''
-  for i in xrange(len(points)):
+  for i in range(len(points)):
     outStr = outStr + '%.2f,%.2f '%(points[i][0],points[i][1])
   # add back on the first point.  This is not required in the spec,
   #  but Adobe's beta-quality viewer seems to not like it being skipped
@@ -159,7 +159,7 @@ class SVGCanvas( Canvas ):
         familyStr = '\'%s\''%(face)
       else:
         familyStr = face
-      for i in xrange(1,len(font.face)):
+      for i in range(1,len(font.face)):
         face = font.face[i]
         if len(string.split(face)) > 1:
           familyStr = ', \'%s\''%(face)
@@ -241,14 +241,14 @@ class SVGCanvas( Canvas ):
   def save(self, type=''):
     if type == '':
       if '.' not in self.name:
-        raise TypeError, 'no file type given to save()'
+        raise TypeError('no file type given to save()')
       filename = self.name
     else:
       filename = self.name + '.' + type
     outFile = open(filename,'w+')
     outFile.write(self._txt+'</svg>')
     outFile.close()
-    print filename, "saved"
+    print(filename, "saved")
 
 
   #------------- drawing methods --------------
@@ -515,7 +515,7 @@ class SVGCanvas( Canvas ):
         pathStr = pathStr + self._FormArcStr(x1,y1,x2,y2,theta1,extent)
 
       else:
-        raise TypeError, "unknown figure operator: "+op
+        raise TypeError("unknown figure operator: "+op)
 
     if closed == 1:
       pathStr = pathStr + 'Z'
@@ -568,8 +568,8 @@ def test():
   canvas = SVGCanvas(name="test")
 
   canvas.defaultLineColor = Color(0.7,0.7,1.0)	# light blue
-  canvas.drawLines( map(lambda i:(i*10,0,i*10,300), range(30)) )
-  canvas.drawLines( map(lambda i:(0,i*10,300,i*10), range(30)) )
+  canvas.drawLines( [(i*10,0,i*10,300) for i in range(30)] )
+  canvas.drawLines( [(0,i*10,300,i*10) for i in range(30)] )
   canvas.defaultLineColor = black		
 
   canvas.drawLine(10,200, 20,190, color=red)
--- src/piddle/piddleTK2/piddleTK.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleTK2/piddleTK.py
@@ -15,7 +15,7 @@ You can find the latest version of this file:
     via http://piddle.sourceforge.net
 """ 
 
-import Tkinter, tkFont
+import tkinter, tkinter.font
 tk = Tkinter
 import piddle 
 import string
@@ -120,7 +120,7 @@ class FontManager:
             # check if the user specified a generic face type
             # like serif or monospaced. check is case-insenstive.
             f = string.lower(font.face)
-            if self.__alt_faces.has_key(f):
+            if f in self.__alt_faces:
                 family = self.__alt_faces[f]
             else:
                 family = font.face
@@ -138,7 +138,7 @@ class FontManager:
         key = (family,size,weight,slant,underline)
 
         # check if we've already seen this font.
-        if self.font_cache.has_key(key):
+        if key in self.font_cache:
             # yep, don't bother creating a new one. just fetch it.
             font = self.font_cache[key]
         else:
@@ -146,7 +146,7 @@ class FontManager:
             # this way we will return info about the actual font
             # selected by Tk, which may be different than what we ask
             # for if it's not availible.
-            font = tkFont.Font(self.master, family=family, size=size, weight=weight,
+            font = tkinter.font.Font(self.master, family=family, size=size, weight=weight,
                                slant=slant,underline=underline)
             self.font_cache[(family,size,weight,slant,underline)] = font
         
@@ -204,7 +204,7 @@ class BaseTKCanvas(tk.Canvas, piddle.Canvas): 
         tk.Canvas.update(self) 
   
     def clear(self): 
-        map(self.delete,self._item_ids) 
+        list(map(self.delete,self._item_ids)) 
         self._item_ids = [] 
         
     def _colorToTkColor(self, c): 
@@ -259,7 +259,7 @@ class BaseTKCanvas(tk.Canvas, piddle.Canvas): 
         font  = self._font_manager.getTkFontString(font or self.defaultFont) 
         new_item = self.create_text(x, y, text=s, 
                                     font=font, fill=color, 
-                                    anchor=Tkinter.W) 
+                                    anchor=tkinter.W) 
         self._item_ids.append(new_item)
 
     def _drawRotatedString(self, s, x,y, font=None, color=None, angle=0):
@@ -292,7 +292,8 @@ class BaseTKCanvas(tk.Canvas, piddle.Canvas): 
         temppen.setink( (255,255,255) )
         pilfont = pp._pilFont(font)
 
-        if not pilfont: raise "bad font!", font
+        if not pilfont:
+                raise("bad font!", font)
 
         temppen.setfont( pilfont )
         pos = [4, int(tempsize/2 - pilCan.fontAscent(font)) - pilCan.fontDescent(font)]
@@ -390,7 +391,7 @@ class BaseTKCanvas(tk.Canvas, piddle.Canvas): 
             if fillColor == self.__TRANSPARENT:
                 # draw open-ended set of lines
                 d = { 'fill':edgeColor, 'width': edgeWidth}
-                new_item = apply(self.create_line, pointlist, d)
+                new_item = self.create_line(*pointlist, **d)
             else:
                 # open filled shape.
                 # draw it twice:
@@ -403,7 +404,7 @@ class BaseTKCanvas(tk.Canvas, piddle.Canvas): 
                 self._item_ids.append(new_item)
                 
                 d = { 'fill':edgeColor, 'width': edgeWidth}
-                new_item = apply(self.create_line, pointlist, d)
+                new_item = self.create_line(*pointlist, **d)
                                                    
         self._item_ids.append(new_item) 
   
@@ -433,7 +434,7 @@ class BaseTKCanvas(tk.Canvas, piddle.Canvas): 
         # unless I keep a copy of this PhotoImage, it seems to be garbage collected
         # and the image is removed from the display after this function. weird
         itk = ImageTk.PhotoImage(myimage, master=self)
-        new_item = self.create_image(x1, y1, image=itk, anchor=Tkinter.NW)
+        new_item = self.create_image(x1, y1, image=itk, anchor=tkinter.NW)
         self._item_ids.append(new_item) 
         self._images.append(itk)
 
--- src/piddle/piddleVCR.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleVCR.py
@@ -167,7 +167,7 @@ class VCRCanvas( Canvas ):
 
     def drawCurve(self, x1,y1, x2,y2, x3,y3, x4,y4, 
                 edgeColor=None, edgeWidth=None, fillColor=None, closed=0):
-        "Draw a B<>zier curve with control points x1,y1 to x4,y4."
+        "Draw a Bezier curve with control points x1,y1 to x4,y4."
 
         self._recordfunc("drawCurve", x1,y1,x2,y2,x3,y3,x4,y4,edgeColor,edgeWidth,fillColor,closed)
 
@@ -223,7 +223,7 @@ class VCRCanvas( Canvas ):
         self._recordfunc("drawFigure", partList, edgeColor,edgeWidth,fillColor,closed)
 
     def drawImage(self, image, x1,y1, x2=None,y2=None):
-        print "Warning!!! piddleVCR does not implent drawImage"
+        print("Warning!!! piddleVCR does not implent drawImage")
         # These are thoughts on how to implement this using a shelf to store image
         # it kept everyting contained in one file
 #          import shelve
--- src/piddle/piddleWX.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleWX.py
@@ -159,11 +159,11 @@ class _WXCanvasDefaultStatusBar(wxStatusBar):
     self.redraw()
 
   def OnOver(self, x, y):
-    self.text = `x` + "," + `y`
+    self.text = repr(x) + "," + repr(y)
     self.redraw()
 
   def OnClick(self, x, y):
-    self.text = `x` + "," + `y`
+    self.text = repr(x) + "," + repr(y)
     self.click.SetValue(true)
     self.redraw()
 
--- src/piddle/piddleWxDc.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddleWxDc.py
@@ -56,7 +56,7 @@ class PiddleWxDc(piddle.Canvas):
           if default_color is not None:
             return self._getWXbrush(default_color)
           else:
-            raise "WXcanvas error:  Cannot create brush."
+            raise("WXcanvas error:  Cannot create brush.")
 
         return wxBrush(wxcolor)
 
@@ -75,7 +75,7 @@ class PiddleWxDc(piddle.Canvas):
           if default_color is not None:
             return self._getWXpen(width, default_color)
           else:
-            raise "WXcanvas error:  Cannot create pen."
+            raise("WXcanvas error:  Cannot create pen.")
 
         return wxPen(wxcolor, width)
 
@@ -236,7 +236,7 @@ class PiddleWxDc(piddle.Canvas):
         #  instead of just 2-tuples.  Therefore, pointlist must be re-created as
         #  only 2-tuples
 
-        pointlist = map(lambda i: tuple(i), pointlist)
+        pointlist = [tuple(i) for i in pointlist]
         if closed == 1:
             pointlist.append(pointlist[0])
 
@@ -260,11 +260,11 @@ class PiddleWxDc(piddle.Canvas):
         try:
             from PIL import Image
         except ImportError:
-            print 'PIL not installed as package'
+            print('PIL not installed as package')
             try:
                 import Image
             except ImportError:
-                raise "PIL not available!"
+                raise("PIL not available!")
 
         if (x2 and y2 and x2>x1 and y2>y1):
             imgPil = image.resize((x2-x1,y2-y1))
--- src/piddle/piddletest.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/piddletest.py
@@ -40,8 +40,8 @@ def basics(canvasClass):
 def drawBasics(canvas):
 	saver = StateSaver(canvas) # leave canvas state as you found it, restores state when leaves scope
 	canvas.defaultLineColor = Color(0.7,0.7,1.0)	# light blue
-	canvas.drawLines( map(lambda i:(i*10,0,i*10,300), range(30)) )
-	canvas.drawLines( map(lambda i:(0,i*10,300,i*10), range(30)) )
+	canvas.drawLines( [(i*10,0,i*10,300) for i in range(30)] )
+	canvas.drawLines( [(0,i*10,300,i*10) for i in range(30)] )
 	canvas.defaultLineColor = black
 	
 	canvas.drawLine(10,200, 20,190, color=red)
@@ -222,8 +222,8 @@ def drawRotstring(canvas):
 		canvas.drawString(s2, 150, 150, angle=ang)
 		cnum = (cnum+1) % len(colors)
 
-      	canvas.drawString( "This is  a\nrotated\nmulti-line string!!!", 350, 100, angle= -90, font=Font(underline=1) )
-        #canvas.drawString( "This is  a\nrotated\nmulti-line string!!!", 400, 175, angle= -45, font=Font(underline=1) )
+		canvas.drawString( "This is  a\nrotated\nmulti-line string!!!", 350, 100, angle= -90, font=Font(underline=1) )
+		#canvas.drawString( "This is  a\nrotated\nmulti-line string!!!", 400, 175, angle= -45, font=Font(underline=1) )
 	return canvas
 
 #----------------------------------------------------------------------
@@ -232,32 +232,32 @@ def tkTest(testfunc):
 	# piddleTK tests are called from here because need TK's event loop
 	try :
 		import piddleTK
-		import Tkinter
+		import tkinter
 	except:
-		print "A module needed for piddleTK is not available, select another backend"
+		print("A module needed for piddleTK is not available, select another backend")
 		return
 
-	root = Tkinter.Tk()
-	frame = Tkinter.Frame(root)  # label='piddletestTK'
+	root = tkinter.Tk()
+	frame = tkinter.Frame(root)  # label='piddletestTK'
 
 	#tkcanvas = piddleTK.TKCanvas(size=(400,400), name='piddletestTK', master = frame)
-        # try new Tk canvas
-        tkcanvas = piddleTK.TKCanvas(size=(400,400), name='piddletestTK', master = frame)
-	bframe = Tkinter.Frame(root)
+	# try new Tk canvas
+	tkcanvas = piddleTK.TKCanvas(size=(400,400), name='piddletestTK', master = frame)
+	bframe = tkinter.Frame(root)
 
-	minimalB=Tkinter.Button(bframe, text='minimal test',
-				command= lambda c=tkcanvas : (c.clear(),drawMinimal(c), c.flush())).pack(side=Tkinter.LEFT)
-	basicB = Tkinter.Button(bframe, text='basic test',
-				command= lambda c=tkcanvas: (c.clear(),drawBasics(c),c.flush()) ).pack(side=Tkinter.LEFT)
-	spectB =Tkinter.Button(bframe, text='spectrum test',
-			       command= lambda c=tkcanvas: (c.clear(),drawSpectrum(c),c.flush()) ).pack(side=Tkinter.LEFT)
-	stringsB = Tkinter.Button(bframe, text='strings test',
-				  command= lambda c=tkcanvas:(c.clear(),drawStrings(c),c.flush()) ).pack(side=Tkinter.LEFT)
-	rotstrB = Tkinter.Button(bframe, text='rotated strings test',
-				 command= lambda c=tkcanvas:(c.clear(), drawRotstring(c),c.flush()) ).pack(side=Tkinter.LEFT)
-	advancedB = Tkinter.Button(bframe, text='advanced test',
-				   command= lambda c=tkcanvas:(c.clear(), drawAdvanced(c),c.flush() ) ).pack(side=Tkinter.LEFT)
-        bframe.pack(side=Tkinter.TOP)
+	minimalB=tkinter.Button(bframe, text='minimal test',
+				command= lambda c=tkcanvas : (c.clear(),drawMinimal(c), c.flush())).pack(side=tkinter.LEFT)
+	basicB = tkinter.Button(bframe, text='basic test',
+				command= lambda c=tkcanvas: (c.clear(),drawBasics(c),c.flush()) ).pack(side=tkinter.LEFT)
+	spectB =tkinter.Button(bframe, text='spectrum test',
+			       command= lambda c=tkcanvas: (c.clear(),drawSpectrum(c),c.flush()) ).pack(side=tkinter.LEFT)
+	stringsB = tkinter.Button(bframe, text='strings test',
+				  command= lambda c=tkcanvas:(c.clear(),drawStrings(c),c.flush()) ).pack(side=tkinter.LEFT)
+	rotstrB = tkinter.Button(bframe, text='rotated strings test',
+				 command= lambda c=tkcanvas:(c.clear(), drawRotstring(c),c.flush()) ).pack(side=tkinter.LEFT)
+	advancedB = tkinter.Button(bframe, text='advanced test',
+				   command= lambda c=tkcanvas:(c.clear(), drawAdvanced(c),c.flush() ) ).pack(side=tkinter.LEFT)
+	bframe.pack(side=tkinter.TOP)
 	frame.pack()
 	# try to draw before running mainloop
 	if testfunc== minimal:
@@ -272,11 +272,11 @@ def tkTest(testfunc):
 		drawStrings(tkcanvas)
 	elif testfunc == rotstring :
 		drawRotstring(tkcanvas)
-        else :
-                print "Illegal testfunc handed to tkTest"
-                raise "Unsupported testfunc"
+	else:
+		print("Illegal testfunc handed to tkTest")
+		raise("Unsupported testfunc")
 
-        tkcanvas.flush() 
+	tkcanvas.flush()
 	
 	root.mainloop()
 	root.destroy()
@@ -287,25 +287,25 @@ def wxTest(testfunc):
 		import piddleWX
 		from wxPython.wx import wxApp
 	except:
-		print "A module needed for piddleWX is not available, select another backend"
+		print("A module needed for piddleWX is not available, select another backend")
 		return
 
-        global wx_app
-        if not globals().has_key("wx_app"):
-                class CanvasApp(wxApp):
-                        "The wxApp that runs canvas.  Initializes windows, and handles redrawing"
-                        def OnInit(self):
-                                return 1
+	global wx_app
+	if "wx_app" not in globals():
+		class CanvasApp(wxApp):
+			"The wxApp that runs canvas.  Initializes windows, and handles redrawing"
+			def OnInit(self):
+				return 1
 
-                wx_app = CanvasApp(0)
+		wx_app = CanvasApp(0)
 
 	# run the test, passing the canvas class and returning the canvas
 	canvas = testfunc(piddleWX.WXCanvas)
-	
+
 	canvas.flush()
 
-        # Run the main loop
-        wx_app.MainLoop()
+	# Run the main loop
+	wx_app.MainLoop()
 
 
 def runtest(backend, testfunc):
@@ -330,15 +330,15 @@ def runtest(backend, testfunc):
 	
 	# do post-test cleanup
 	canvas.flush()
-        # handle save's here
+	# handle save's here
 	if backend == 'piddlePIL':
 		canvas.save(format='png')		# save as a PNG file
-        elif backend == 'piddleVCR':
+	elif backend == 'piddleVCR':
 		filename = canvas.name + ".vcr"
 		canvas.save(filename)
-		print filename, "saved"
-        else:     # if backend == 'piddlePS' or backend== 'piddlePDF':
-                canvas.save()  # should be "pass'ed" by Canvas's that don't use save
+		print(filename, "saved")
+	else:     # if backend == 'piddlePS' or backend== 'piddlePDF':
+		canvas.save()  # should be "pass'ed" by Canvas's that don't use save
 
 
 def mainLoop():
@@ -358,34 +358,34 @@ def mainLoop():
 			else: bflag = ''
 			if i == test: tflag = '==>'
 			else: tflag = ''
-			print "%10s %-20s %10s %-20s" % (bflag, bstr, tflag, tstr)
+			print("%10s %-20s %10s %-20s" % (bflag, bstr, tflag, tstr))
 			i = i+1		
-		print
+		print()
 		
-		inp = raw_input("Selection (0 to exit): ")
-		print
+		inp = input("Selection (0 to exit): ")
+		print()
 
 		if inp == '0': return
 		if inp:
 			testinp = ''
 			if inp[-1] in string.letters: testinp = inp[-1]
 			elif inp[0] in string.letters: testinp = inp[0]
-			backinp = string.join(filter(lambda x:x in '0123456789',inp))
+			backinp = string.join([x for x in inp if x in '0123456789'])
 			if backinp:
 				backend = int(backinp)-1
 				if backend < len(backends):
 					docstr = __import__(backends[backend]).__doc__
-					if docstr: print docstr
-					else: print "<no doc string>"
+					if docstr: print(docstr)
+					else: print("<no doc string>")
 				else: backend = None
 			if testinp:
 				test = ord(string.upper(testinp[0])) - ord('A')
 				if test >= 0 and test < len(tests):
 					docstr = tests[test].__doc__
 					if docstr:
-                                          print docstr
+					    print(docstr)
 				else: test = None
-		print
+		print()
 		
 		# now, if we have a valid backend and test, run it
 		if backend != None and test != None:
--- src/piddle/polyfunc.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/polyfunc.py
@@ -168,7 +168,7 @@ class AffineMatrix:
 
         # would like to reshape the sequence, do w/ a loop for now
         res = []
-        for ii in xrange(0,N, 2):
+        for ii in range(0,N, 2):
             pt = self.transformPt( (seq[ii], seq[ii+1]) )
             res.extend(pt)
 
@@ -214,7 +214,7 @@ class CoordFrame:
 def drawCircleAt(canvas, x,y,r, **kw):
     # useful for marking a particular location w/ a glyph
     df = canvas.__class__
-    apply(df.drawEllipse, (canvas, x-r, y-r, x+r,y+r), kw)
+    df.drawEllipse(*(canvas, x-r, y-r, x+r,y+r), **kw)
 
 
 def drawCubicPolynomial(canvas, frame, xinterval, A=0.0, B=0.0, C=0.0, D=0.0,
@@ -288,7 +288,7 @@ def runtest():
         frame.drawFrameBox(canvas)
         # draw a family of quadratics w/in the box w/ x-intercept x=0
         NA = 10.0
-        for AA in xrange(1,NA,2):
+        for AA in range(1,NA,2):
             drawQuad(canvas, frame, xinterval=(-10,10), A= AA/NA, B=0.0)
             
         # now some other assorted quadratics
@@ -316,7 +316,7 @@ def runtest():
     
         
 if __name__== '__main__':
-    print 'Running test drawing assorted quadratics to qtest.ps'
+    print('Running test drawing assorted quadratics to qtest.ps')
     import piddle
     runtest()
 
--- src/piddle/stringformat.py.orig	2002-06-03 13:46:30 UTC
+++ src/piddle/stringformat.py
@@ -139,14 +139,14 @@ class StringSegment:
 			return y
 	
 	def dump(self):
-		print "StringSegment: ]%s[" % self.s
-		print "\tsuper = ", self.super
-		print "\tsub = ", self.sub
-		print "\tbold = ", self.bold
-		print "\titalic = ",self.italic
-		print "\tunderline = ", self.underline
-		print "\twidth = ", self.width
-		print "\tgreek = ", self.greek
+		print("StringSegment: ]%s[" % self.s)
+		print("\tsuper = ", self.super)
+		print("\tsub = ", self.sub)
+		print("\tbold = ", self.bold)
+		print("\titalic = ",self.italic)
+		print("\tunderline = ", self.underline)
+		print("\twidth = ", self.width)
+		print("\tgreek = ", self.greek)
 
 #------------------------------------------------------------------	
 # The StringFormatter will be able to format the following xml
@@ -245,7 +245,7 @@ class StringFormatter(xmllib.XMLParser):
 		}
 		
 		# automatically add handlers for all of the greek characters
-		for item in greekchars.keys():
+		for item in list(greekchars.keys()):
 			self.elements[item] = (lambda attr,self=self,letter=greekchars[item]: \
 				self.start_greek(attr,letter), self.end_greek)
 				
@@ -253,7 +253,7 @@ class StringFormatter(xmllib.XMLParser):
 		self.greek = 0
 		# set up dictionary for greek characters, this is a class variable
 		# should I copy it and then update it?
-		for item in greekchars.keys():
+		for item in list(greekchars.keys()):
 			self.entitydefs[item] = '<%s/>' % item
 
 	#----------------------------------------------------------------
@@ -386,15 +386,15 @@ def test1():
 	drawString(canvas,"<u><b>hello there</b></u><super>hi</super>",10,20)
 	drawString(canvas,"hello!",10,40)
 
-	print "'hello!' width = ", stringWidth(canvas,"hello!")
-	print "'hello!' PIDDLE width = ", canvas.stringWidth("hello!")
+	print("'hello!' width = ", stringWidth(canvas,"hello!"))
+	print("'hello!' PIDDLE width = ", canvas.stringWidth("hello!"))
 
 	drawString(canvas, "<b>hello!</b> goodbye", 10,60) 
-	print "'<b>hello!</b> goodbye' width = ", stringWidth(canvas,"<b>hello!</b> goodbye")
+	print("'<b>hello!</b> goodbye' width = ", stringWidth(canvas,"<b>hello!</b> goodbye"))
 	drawString(canvas, "hello!", 10,80, Font(bold=1)) 
-	print "'hello!' Font(bold=1) PIDDLE width = ", canvas.stringWidth("hello!",Font(bold=1))
+	print("'hello!' Font(bold=1) PIDDLE width = ", canvas.stringWidth("hello!",Font(bold=1)))
 	drawString(canvas, " goodbye", 10,100) 
-	print "' goodbye' PIDDLE width = ", canvas.stringWidth(" goodbye")
+	print("' goodbye' PIDDLE width = ", canvas.stringWidth(" goodbye"))
 	canvas.flush()
 
 def test2():
@@ -493,21 +493,21 @@ def stringformatTest():
 		"<b><sub>bold+sub</sub></b> hello <u><super>underline+super</super></u>")
 	
 	# break down the various string widths
-	print 'sw("<b><sub>bold+sub</sub></b>") = ', stringWidth(canvas,"<b><sub>bold+sub</sub></b>")
-	print 'sw(" hello ") = ', stringWidth(canvas," hello ")
-	print 'sw("<u><super>underline+super</super></u>") = ', \
-		stringWidth(canvas,"<u><super>underline+super</super></u>")
+	print('sw("<b><sub>bold+sub</sub></b>") = ', stringWidth(canvas,"<b><sub>bold+sub</sub></b>"))
+	print('sw(" hello ") = ', stringWidth(canvas," hello "))
+	print('sw("<u><super>underline+super</super></u>") = ', \
+		stringWidth(canvas,"<u><super>underline+super</super></u>"))
 	
 	pwidth1 = canvas.stringWidth("bold+sub",Font(size=canvas.defaultFont.size-sizedelta, bold=1))
-	print "pwidth1 = ", pwidth1
+	print("pwidth1 = ", pwidth1)
 	pwidth2 = canvas.stringWidth(" hello ")
-	print "pwidth2 = ", pwidth2
+	print("pwidth2 = ", pwidth2)
 	pwidth3 = canvas.stringWidth("underline+super",
 		Font(size=canvas.defaultFont.size-sizedelta,underline=1))
-	print "pwidth3 = ", pwidth3	
+	print("pwidth3 = ", pwidth3)	
 
 	# these should be the same
-	print "sfwidth = ", sfwidth, " pwidth = ", pwidth1+pwidth2+pwidth3
+	print("sfwidth = ", sfwidth, " pwidth = ", pwidth1+pwidth2+pwidth3)
 
 	################################################### testing greek characters
 	# looks better in a larger font
@@ -515,21 +515,21 @@ def stringformatTest():
 	x = 10
 	y = canvas.defaultFont.size*1.5
 	drawString(canvas,"&alpha; &beta; <chi/> &Delta; <delta/>",x,y, Font(size=16), color = blue)
-	print "line starting with alpha should be font size 16"	
+	print("line starting with alpha should be font size 16")	
 	y = y+30
 	drawString(canvas,"&epsiv; &eta; &Gamma; <gamma/>",x,y, color = green)	
 	y = y+30
 	drawString(canvas,"&iota; &kappa; &Lambda; <lambda/>",x,y, color = blue)	
 	y = y+30
 	drawString(canvas,"<u>&mu;</u> &nu; <b>&Omega;</b> <omega/>",x,y, color = green)	
-	print "mu should be underlined, Omega should be big and bold"
+	print("mu should be underlined, Omega should be big and bold")
 	y = y+30
 	drawString(canvas,"&omicron; &Phi; &phi; <phiv/>",x,y, color = blue)	
 	y = y+30
 	drawString(canvas,"&Pi; &pi; &piv; <Psi/> &psi; &rho;",x,y, color = green)	
 	y = y+30
 	drawString(canvas,"<u>&Sigma; &sigma; &sigmav; <tau/></u>",x,y, color = blue)	
-	print "line starting with sigma should be completely underlined"
+	print("line starting with sigma should be completely underlined")
 	y = y+30
 	drawString(canvas,"&Theta; &theta; &thetav; <Xi/> &xi; &zeta;",x,y, color = green)	
 	y= y+30