--- ./build/mac/createfont_osx.py	(original)
+++ ./build/mac/createfont_osx.py	(refactored)
@@ -36,7 +36,7 @@
 
 
 def _getBitmapImageRep(size, hasAlpha=True):
-    width, height = map(int, size)
+    width, height = list(map(int, size))
     return NSBitmapImageRep.alloc().initWithBitmapDataPlanes_pixelsWide_pixelsHigh_bitsPerSample_samplesPerPixel_hasAlpha_isPlanar_colorSpaceName_bytesPerRow_bitsPerPixel_(None, width, height, 8, 4, hasAlpha, False, NSDeviceRGBColorSpace, width*4, 32)
 
 
@@ -55,7 +55,7 @@
 
 def filter_range(n):
     offset = 1 # - int(n/5)
-    return range(-n/2 + offset, n/2 + offset)
+    return list(range(-n/2 + offset, n/2 + offset))
 
 
 class SysFont(object):
@@ -79,7 +79,7 @@
                 self._isBold and 'Bold' or '',
                 self._isOblique and 'Oblique' or '')
         self._font = NSFont.fontWithName_size_(name, self._size)
-        print name, self._font
+        print(name, self._font)
         if self._font is None:
             if self._isBold:
                 self._font = NSFont.boldSystemFontOfSize(self._size)
@@ -121,10 +121,10 @@
         self._isUnderline = isUnderline
         
     def size(self, text):
-        return tuple(map(int,map(math.ceil, NSString.sizeWithAttributes_(text, {
+        return tuple(map(int,list(map(math.ceil, NSString.sizeWithAttributes_(text, {
             NSFontAttributeName: self._font,
             NSUnderlineStyleAttributeName: self._isUnderline and 1.0 or 0,
-        }))))
+        })))))
         
     def advancement(self, glyph):
         return tuple(self._font.advancementForGlyph_(ord(glyph)))
@@ -196,7 +196,7 @@
                            [6,  36,  90,  120, 90,  36,  6],
                            [1,  6,   15,  20,  15,  6,   1]]
             else:
-                print "factors for filter size", filter_size, "not defined!"
+                print("factors for filter size", filter_size, "not defined!")
                 factors = 0
 
             # Filter a shadow.
@@ -269,7 +269,7 @@
 
 if __name__=='__main__':
     if len(sys.argv) < 5:
-        print "usage: " + sys.argv[0] + " (font-name) (font-size) (texture-width) (output-file)"
+        print("usage: " + sys.argv[0] + " (font-name) (font-size) (texture-width) (output-file)")
         sys.exit(0)
 
     out_filename = sys.argv[4]
@@ -286,17 +286,17 @@
     
     texture_width = int(sys.argv[3])
     font_point_height = s.get_height()
-    print "Font texture width =", texture_width
-    print "Line height =", font_point_height, "pt"
-    print "Font size =", point_size, "pt"
+    print("Font texture width =", texture_width)
+    print("Line height =", font_point_height, "pt")
+    print("Font size =", point_size, "pt")
     
     ascent = s.get_ascent()
     descent = s.get_descent()
-    print "Ascent =", ascent, "pt  Descent =", descent, "pt"
-    
-    print "Shadow filter is sized %i for this font." % s.shadow_filter_size()
+    print("Ascent =", ascent, "pt  Descent =", descent, "pt")
+    
+    print("Shadow filter is sized %i for this font." % s.shadow_filter_size())
     border_size = s.border_size()
-    print "Glyph borders are %i pixels wide." % border_size
+    print("Glyph borders are %i pixels wide." % border_size)
     
     rover = (0, 0)
     line_height = 0
@@ -304,7 +304,7 @@
     used_pixels = 0
     
     # Only the basic ASCII set, and some specific characters.
-    char_range = range(0x20, 0x7F) + [0x96, 0x97, 0xA3, 0xA4, 0xA9, 0xB0, 0xB1]
+    char_range = list(range(0x20, 0x7F)) + [0x96, 0x97, 0xA3, 0xA4, 0xA9, 0xB0, 0xB1]
     for code in char_range: 
         glyph = Glyph(code)
         try:
@@ -320,7 +320,7 @@
                 # No, move to the new row.
                 rover = (0, rover[1] + line_height)
                 texture_height += line_height
-                print "Finished a %i pixels tall line." % line_height
+                print("Finished a %i pixels tall line." % line_height)
                 line_height = 0
             
             glyph.pos = rover
@@ -332,20 +332,20 @@
             glyphs.append(glyph)
         #except Exception, x:
         except KeyboardInterrupt:
-            print "Code %i: Failed to render." % code
-            print x
-        
-    print "Finished rendering %i glyphs." % len(glyphs)
+            print("Code %i: Failed to render." % code)
+            print(x)
+        
+    print("Finished rendering %i glyphs." % len(glyphs))
     actual_line_height = glyphs[0].dims[1] - border_size*2
-    print "Actual line height is %i pixels." % actual_line_height
-    
-    print "Size of the finished texture is %i x %i." % (texture_width, texture_height)
+    print("Actual line height is %i pixels." % actual_line_height)
+    
+    print("Size of the finished texture is %i x %i." % (texture_width, texture_height))
         
     actual_height = pow2(texture_height)
     total_pixels = texture_width * actual_height
     
-    print "Unused texture area: %.2f %%" % (100*(1.0 - used_pixels/float(total_pixels)))
-    print "Writing output to file: %s" % out_filename
+    print("Unused texture area: %.2f %%" % (100*(1.0 - used_pixels/float(total_pixels))))
+    print("Writing output to file: %s" % out_filename)
     
     out = file(out_filename, 'wb')
     
@@ -365,10 +365,10 @@
     scale = float(actual_line_height) / font_point_height
     pixel_ascent = int(math.ceil(scale * ascent))
     pixel_descent = int(math.ceil(scale * descent))
-    print "    Pixel ascent/descent:", pixel_ascent, '/', pixel_descent
+    print("    Pixel ascent/descent:", pixel_ascent, '/', pixel_descent)
     
     pixel_line_height = int(scale * font_point_height)
-    print "    Pixel line height:", pixel_line_height
+    print("    Pixel line height:", pixel_line_height)
     
     # Ascent and descent.
     out.write(struct.pack('<HHH', pixel_line_height, pixel_ascent, pixel_descent))
@@ -379,7 +379,7 @@
                               g.dims[0], g.dims[1]))
 
     # Glyph map.
-    print "    Writing glyph map..."
+    print("    Writing glyph map...")
     for y in range(texture_height):
         for x in range(texture_width):
             pixel = find_pixel(glyphs, x, y)
--- ./build/scripts/packres.py	(original)
+++ ./build/scripts/packres.py	(refactored)
@@ -6,8 +6,8 @@
 import sys, os, os.path, zipfile
 
 if len(sys.argv) < 2:
-    print "Usage: %s pk3-target-dir" % sys.argv[0]
-    print "(run in build/scripts/)"
+    print("Usage: %s pk3-target-dir" % sys.argv[0])
+    print("(run in build/scripts/)")
     sys.exit(0)
 
 # Check quiet flag.
@@ -27,7 +27,7 @@
         self.files += fileNamesArray
         
     def msg(self, text):
-        if not quietMode: print text
+        if not quietMode: print(text)
         
     def create(self, name):
         full_name = os.path.join(target_dir, name)
@@ -61,7 +61,7 @@
                 process_dir(full_src, dest)
             
         # Write it out.
-        print "Created %s (with %i files)." % (os.path.normpath(full_name), len(pk3.namelist()))
+        print("Created %s (with %i files)." % (os.path.normpath(full_name), len(pk3.namelist())))
         pk3.close()
 
 # First up, doomsday.pk3.
--- ./build/scripts/wadcompiler.py	(original)
+++ ./build/scripts/wadcompiler.py	(refactored)
@@ -49,7 +49,7 @@
         self.type = self.file.read(4)
         count = struct.unpack('<I', self.file.read(4))[0]
         info_offset = struct.unpack('<I', self.file.read(4))[0]
-        print "%s, type=%s, count=%i, info_offset=%i" % (self.file_name, self.type, count, info_offset)
+        print("%s, type=%s, count=%i, info_offset=%i" % (self.file_name, self.type, count, info_offset))
         self.lumps = []
         # Read the info table.
         self.file.seek(info_offset)
@@ -68,7 +68,7 @@
             self.lumps.append( Lump(info[2], data, info[0]) )
         
     def write(self):
-        print 'writing', self.file_name
+        print('writing', self.file_name)
         self.file.truncate()
         self.file.seek(0)
         # Type.
@@ -104,17 +104,17 @@
         
     def set_type(self, new_type):
         if len(new_type) != 4:
-            print "'%s' is not a valid type. Must have 4 chars." % new_type
+            print("'%s' is not a valid type. Must have 4 chars." % new_type)
         else:
-            print 'setting type to %s' % new_type
+            print('setting type to %s' % new_type)
         self.type = new_type
         
     def list(self):
         for i in range(len(self.lumps)):
             lump = self.lumps[i]
-            print "%5i -- %-8s (at %8i, %8i bytes)" % (i, lump.name, lump.offset, 
-                                                       len(lump.data))
-        print "%i lumps total." % len(self.lumps)
+            print("%5i -- %-8s (at %8i, %8i bytes)" % (i, lump.name, lump.offset, 
+                                                       len(lump.data)))
+        print("%i lumps total." % len(self.lumps))
         
     def insert(self, at_lump, names):
         # Where to insert?
@@ -128,13 +128,13 @@
                     at = i
                     break
         if at == -1:
-            print "could not find insert point, aborting"
+            print("could not find insert point, aborting")
             return
-        print "inserting at index %i..." % at
+        print("inserting at index %i..." % at)
         
         for name in names:
             real, arch = split_name(name)
-            print "inserting %s as %s" % (real, valid_lump_name(arch))
+            print("inserting %s as %s" % (real, valid_lump_name(arch)))
             self.lumps.insert(at, Lump(valid_lump_name(arch), 
                                        file(real, 'rb').read(), 0))
     
@@ -164,28 +164,28 @@
                             break
                 else:
                     nice_name += ext
-                print "extracting", lump.name, "(%i bytes) as %s" % (len(lump.data), nice_name)
+                print("extracting", lump.name, "(%i bytes) as %s" % (len(lump.data), nice_name))
                 f = file(nice_name, 'wb')
                 f.write(lump.data)
                 f.close()
 
 
 def usage():
-    print 'Usage: %s [command] [wad] [files]' % sys.argv[0]
-    print 'command = l(ist) | c(reate PWAD) | C(reate IWAD) | x(tract) | a(ppend) | i(nsert) | t(ype)'
-    print 'Examples:'
-    print '%s l some.wad' % sys.argv[0]
-    print '%s c new.wad LUMP1 LUMP2 LUMP3' % sys.argv[0]
-    print '%s i LUMP2 some.wad LUMP5 LUMP6 LUMP7 (at LUMP2)' % sys.argv[0]
-    print '%s a existing.wad LUMP4 LUMP5' % sys.argv[0]
-    print '%s x existing.wad (extracts all lumps)' % sys.argv[0]
-    print '%s x existing.wad LUMP4 (extracts selected lumps)' % sys.argv[0]
-    print '%s t existing.wad IWAD' % sys.argv[0]
-    print 'You can specify files as realfilename@LUMPNAME.'
+    print('Usage: %s [command] [wad] [files]' % sys.argv[0])
+    print('command = l(ist) | c(reate PWAD) | C(reate IWAD) | x(tract) | a(ppend) | i(nsert) | t(ype)')
+    print('Examples:')
+    print('%s l some.wad' % sys.argv[0])
+    print('%s c new.wad LUMP1 LUMP2 LUMP3' % sys.argv[0])
+    print('%s i LUMP2 some.wad LUMP5 LUMP6 LUMP7 (at LUMP2)' % sys.argv[0])
+    print('%s a existing.wad LUMP4 LUMP5' % sys.argv[0])
+    print('%s x existing.wad (extracts all lumps)' % sys.argv[0])
+    print('%s x existing.wad LUMP4 (extracts selected lumps)' % sys.argv[0])
+    print('%s t existing.wad IWAD' % sys.argv[0])
+    print('You can specify files as realfilename@LUMPNAME.')
    
 # Call main function.
-print 'WAD Compiler by skyjake@users.sourceforge.net'
-print '$Date$'
+print('WAD Compiler by skyjake@users.sourceforge.net')
+print('$Date$')
 
 # Check the args.
 if len(sys.argv) < 3:
@@ -219,7 +219,7 @@
     try:
         wad = Wad(wad_name, mode)
     except:
-        print 'Failure to open %s.' % wad_name
+        print('Failure to open %s.' % wad_name)
         import traceback
         traceback.print_exc()
         sys.exit(2)
--- ./engine/scripts/makedmt.py	(original)
+++ ./engine/scripts/makedmt.py	(refactored)
@@ -118,7 +118,7 @@
             # Translate the type into a real C type.
             if '_s' in c_type:
                 c_type = 'struct ' + c_type
-            for symbol, real in type_replacements.items():
+            for symbol, real in list(type_replacements.items()):
                 c_type = c_type.replace(symbol, real)
             
             # Add some visual padding to align the members.