diff --git a/doc/ExtendingLimits.md b/doc/ExtendingLimits.md
index c18a37c..b022b30 100644
--- a/doc/ExtendingLimits.md
+++ b/doc/ExtendingLimits.md
@@ -24,7 +24,7 @@ constants of full-`constexpr` enums. To extend:
      replacement macros for `enum.h` to use. Pick a name for this file and a
      location somewhere in your include path. I will assume that this file is
      `common/enum_macros.h` in your project.
-  4. Run `python make_macros.py 512 64 > common/enum_macros.h`.
+  4. Run `python3 make_macros.py 512 64 > common/enum_macros.h`.
   5. Define `BETTER_ENUMS_MACRO_FILE <common/enum_macros.h>` before including
      `enum.h`. This is typically done by supplying extra flags to the compiler
      on the command line:
diff --git a/doc/Makefile b/doc/Makefile
index ad7ec9b..8d0db89 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -5,7 +5,7 @@ SOURCE_CXX := $(foreach md,$(SOURCE_MARKDOWN),$(call toexample,$(md)))
 
 .PHONY : html
 html :
-	python docs.py
+	python3 docs.py
 	@echo "See html/index.html"
 
 .PHONY : publish
@@ -19,14 +19,14 @@ prepare : examples web
 
 .PHONY : web
 web : examples
-	python docs.py --web
+	python3 docs.py --web
 
 .PHONY : examples
 examples : $(SOURCE_CXX)
 
 define EXAMPLE
 $(1) : $(2)
-	python transform.py --o-cxx $(1) $(2)
+	python3 transform.py --o-cxx $(1) $(2)
 endef
 
 $(foreach md,$(SOURCE_MARKDOWN), \
diff --git a/doc/docs.py b/doc/docs.py
index 724e365..3dc4a55 100755
--- a/doc/docs.py
+++ b/doc/docs.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python3
 
 import glob
 import re
@@ -8,7 +8,7 @@ import transform
 import os
 import os.path
 import sys
-import urllib
+import urllib.parse
 
 TEMPLATE_DIRECTORY = "template"
 OUTPUT_DIRECTORY   = "html"
@@ -85,8 +85,8 @@ def compose_page(relative_path, definitions):
     definitions["canonical"] = canonical
     definitions["prefix"] = prefix
 
-    definitions["quoted_url"] = urllib.quote(definitions["canonical"], "")
-    definitions["quoted_title"] = urllib.quote(definitions["title"], "")
+    definitions["quoted_url"] = urllib.parse.quote(definitions["canonical"], "")
+    definitions["quoted_title"] = urllib.parse.quote(definitions["title"], "")
 
     if "class" not in definitions:
         definitions["class"] = ""
@@ -140,9 +140,7 @@ def compose_general_page(relative_path):
     write_page(relative_path, text)
 
 def list_general_pages():
-    return filter(
-        lambda s: not os.path.splitext(os.path.basename(s))[0].isupper(),
-        glob.glob("*.md"))
+    return [s for s in glob.glob("*.md") if not os.path.splitext(os.path.basename(s))[0].isupper()]
 
 def process_threaded(directory):
     sources = glob.glob(os.path.join(directory, "*.md"))
diff --git a/doc/mistune.py b/doc/mistune.py
index 34860d9..ba1fed6 100755
--- a/doc/mistune.py
+++ b/doc/mistune.py
@@ -944,7 +944,7 @@ class Markdown(object):
         if not self.footnotes:
             return out
 
-        footnotes = filter(lambda o: keys.get(o['key']), self.footnotes)
+        footnotes = [o for o in self.footnotes if keys.get(o['key'])]
         self.footnotes = sorted(
             footnotes, key=lambda o: keys.get(o['key']), reverse=True
         )
diff --git a/doc/transform.py b/doc/transform.py
index 04652f2..59332bb 100755
--- a/doc/transform.py
+++ b/doc/transform.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python3
 
 # Reads mixed source/text markdown files and outputs HTML and/or C++ source.
 # Usage:
@@ -48,9 +48,9 @@ def pretty_print(text, prefix, start_with_prefix = True):
 
 def camel_case(text):
     components = re.split("[ -]+", text)
-    components = map(lambda s: s.capitalize(), components)
+    components = [s.capitalize() for s in components]
     result = "".join(components)
-    result = filter(lambda c: c not in ",!:-$()?", result)
+    result = "".join([c for c in result if c not in ",!:-$()?"])
     return result
 
 class HtmlRenderer(mistune.Renderer):
diff --git a/script/make_macros.py b/script/make_macros.py
index 88d9288..479387a 100755
--- a/script/make_macros.py
+++ b/script/make_macros.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python3
 
 # This file is part of Better Enums, released under the BSD 2-clause license.
 # See LICENSE for details, or visit http://github.com/aantron/better-enums.
@@ -25,7 +25,7 @@
 #
 # 0. MACRO_FILE is the name of the external macro file. Make sure you put it
 #    somewhere in your include path.
-# 1. Run python make_macros.py 512 128 > MACRO_FILE
+# 1. Run python3 make_macros.py 512 128 > MACRO_FILE
 # 2. Build your code with an additional compiler flag:
 #    - for gcc and clang, -DBETTER_ENUMS_MACRO_FILE='<MACRO_FILE>'
 #    - for VC++, /DBETTER_ENUMS_MACRO_FILE='<MACRO_FILE>'
@@ -53,7 +53,7 @@ class MultiLine(object):
                 break_line = True
 
         if break_line:
-            print >> self._stream, ' ' * (self._columns_left - 1) + '\\'
+            print(' ' * (self._columns_left - 1) + '\\', file=self._stream)
             self._stream.write(' ' * self._indent)
             self._columns_left = self._columns - self._indent
             token = token.lstrip()
@@ -62,42 +62,42 @@ class MultiLine(object):
         self._columns_left -= len(token)
 
 def generate(stream, constants, length, script):
-    print >> stream, '// This file was automatically generated by ' + script
+    print('// This file was automatically generated by ' + script, file=stream)
 
-    print >> stream, ''
-    print >> stream, '#pragma once'
-    print >> stream, ''
-    print >> stream, '#ifndef BETTER_ENUMS_MACRO_FILE_H'
-    print >> stream, '#define BETTER_ENUMS_MACRO_FILE_H'
+    print('', file=stream)
+    print('#pragma once', file=stream)
+    print('', file=stream)
+    print('#ifndef BETTER_ENUMS_MACRO_FILE_H', file=stream)
+    print('#define BETTER_ENUMS_MACRO_FILE_H', file=stream)
 
-    print >> stream, ''
-    print >> stream, '#define BETTER_ENUMS_PP_MAP(macro, data, ...) \\'
-    print >> stream, '    BETTER_ENUMS_ID( \\'
-    print >> stream, '        BETTER_ENUMS_APPLY( \\'
-    print >> stream, '            BETTER_ENUMS_PP_MAP_VAR_COUNT, \\'
-    print >> stream, '            BETTER_ENUMS_PP_COUNT(__VA_ARGS__)) \\'
-    print >> stream, '        (macro, data, __VA_ARGS__))'
+    print('', file=stream)
+    print('#define BETTER_ENUMS_PP_MAP(macro, data, ...) \\', file=stream)
+    print('    BETTER_ENUMS_ID( \\', file=stream)
+    print('        BETTER_ENUMS_APPLY( \\', file=stream)
+    print('            BETTER_ENUMS_PP_MAP_VAR_COUNT, \\', file=stream)
+    print('            BETTER_ENUMS_PP_COUNT(__VA_ARGS__)) \\', file=stream)
+    print('        (macro, data, __VA_ARGS__))', file=stream)
 
-    print >> stream, ''
-    print >> stream, '#define BETTER_ENUMS_PP_MAP_VAR_COUNT(count) ' + \
-                     'BETTER_ENUMS_M ## count'
+    print('', file=stream)
+    print('#define BETTER_ENUMS_PP_MAP_VAR_COUNT(count) ' +
+                     'BETTER_ENUMS_M ## count', file=stream)
 
-    print >> stream, ''
-    print >> stream, '#define BETTER_ENUMS_APPLY(macro, ...) ' + \
-                      'BETTER_ENUMS_ID(macro(__VA_ARGS__))'
+    print('', file=stream)
+    print('#define BETTER_ENUMS_APPLY(macro, ...) ' +
+                      'BETTER_ENUMS_ID(macro(__VA_ARGS__))', file=stream)
 
-    print >> stream, ''
-    print >> stream, '#define BETTER_ENUMS_ID(x) x'
+    print('', file=stream)
+    print('#define BETTER_ENUMS_ID(x) x', file=stream)
 
-    print >> stream, ''
-    print >> stream, '#define BETTER_ENUMS_M1(m, d, x) m(d,0,x)'
+    print('', file=stream)
+    print('#define BETTER_ENUMS_M1(m, d, x) m(d,0,x)', file=stream)
     for index in range(2, constants + 1):
-        print >> stream, '#define BETTER_ENUMS_M' + str(index) + \
-                         '(m,d,x,...) m(d,' + str(index - 1) + ',x) \\'
-        print >> stream, '    BETTER_ENUMS_ID(BETTER_ENUMS_M' + \
-                         str(index - 1) + '(m,d,__VA_ARGS__))'
+        print('#define BETTER_ENUMS_M' + str(index) +
+                         '(m,d,x,...) m(d,' + str(index - 1) + ',x) \\', file=stream)
+        print('    BETTER_ENUMS_ID(BETTER_ENUMS_M' +
+                         str(index - 1) + '(m,d,__VA_ARGS__))', file=stream)
 
-    print >> stream, ''
+    print('', file=stream)
     pp_count_impl_prefix = '#define BETTER_ENUMS_PP_COUNT_IMPL(_1,'
     stream.write(pp_count_impl_prefix)
     pp_count_impl = MultiLine(stream = stream, indent = 4,
@@ -107,10 +107,10 @@ def generate(stream, constants, length, script):
     pp_count_impl.write(' count,')
     pp_count_impl.write(' ...)')
     pp_count_impl.write(' count', last = True)
-    print >> stream, ''
+    print('', file=stream)
 
-    print >> stream, ''
-    print >> stream, '#define BETTER_ENUMS_PP_COUNT(...) \\'
+    print('', file=stream)
+    print('#define BETTER_ENUMS_PP_COUNT(...) \\', file=stream)
     pp_count_prefix = \
         '    BETTER_ENUMS_ID(BETTER_ENUMS_PP_COUNT_IMPL(__VA_ARGS__,'
     stream.write(pp_count_prefix)
@@ -119,28 +119,27 @@ def generate(stream, constants, length, script):
     for index in range(0, constants - 1):
         pp_count.write(' ' + str(constants - index) + ',')
     pp_count.write(' 1))', last = True)
-    print >> stream, ''
+    print('', file=stream)
 
-    print >> stream, ''
+    print('', file=stream)
     iterate_prefix = '#define BETTER_ENUMS_ITERATE(X, f, l)'
     stream.write(iterate_prefix)
     iterate = MultiLine(stream = stream, indent = 4,
                         initial_column = len(iterate_prefix))
     for index in range(0, length):
         iterate.write(' X(f, l, %i)' % index)
-    print >> stream, ''
+    print('', file=stream)
 
-    print >> stream, ''
-    print >> stream, '#endif // #ifndef BETTER_ENUMS_MACRO_FILE_H'
+    print('', file=stream)
+    print('#endif // #ifndef BETTER_ENUMS_MACRO_FILE_H', file=stream)
 
 if __name__ == '__main__':
     if len(sys.argv) != 3:
-        print >> sys.stderr, \
-            'Usage: ' + sys.argv[0] + ' CONSTANTS LENGTH > FILE'
-        print >> sys.stderr, ''
-        print >> sys.stderr, 'Prints map macro definition to FILE.'
-        print >> sys.stderr, 'CONSTANTS is the number of constants to support.'
-        print >> sys.stderr, 'LENGTH is the maximum length of a constant name.'
+        print('Usage: ' + sys.argv[0] + ' CONSTANTS LENGTH > FILE', file=sys.stderr)
+        print('', file=sys.stderr)
+        print('Prints map macro definition to FILE.', file=sys.stderr)
+        print('CONSTANTS is the number of constants to support.', file=sys.stderr)
+        print('LENGTH is the maximum length of a constant name.', file=sys.stderr)
         sys.exit(1)
 
     generate(sys.stdout, int(sys.argv[1]), int(sys.argv[2]),
diff --git a/test/Makefile b/test/Makefile
index 719a85e..6bfb0fc 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -36,7 +36,7 @@ define PATH_FIX
 sed 's!include "/!include "C:/cygwin/!g' $1 > $$$$ && mv $$$$ $1
 endef
 SUFFIX := .exe
-CXXTESTGEN := python `which cxxtestgen | sed -E 's!(/cygdrive)?/c/!c:/!'`
+CXXTESTGEN := python3 `which cxxtestgen | sed -E 's!(/cygdrive)?/c/!c:/!'`
 
 endif