Make Python scripts Python 2 and 3 compatible. An alternative to #71.

AUTHORS

@@ -2,4 +2,5 @@ This is the (likely imcomplete) list of people who have made Wren what it is.
 If you submit a patch to Wren, please add your name and email address to the
 end of this list.
 
-Robert Nystrom <robert@stuffwithstuff.com>
+Robert Nystrom <robert@stuffwithstuff.com>
+Kyle Marek-Spartz <kyle.marek.spartz@gmail.com>

script/generate_builtins.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+
 import glob
 import os.path
 import re
@@ -33,7 +34,7 @@ def copy_builtin(filename):
   with open("src/wren_" + name + ".c", "w") as f:
     f.write(c_source)
 
-  print name
+  print(name)
 
 
 for f in glob.iglob("builtin/*.wren"):

script/generate_docs.py

@@ -7,6 +7,7 @@ import shutil
 import subprocess
 import sys
 import time
+import re
 from datetime import datetime
 
 def is_up_to_date(path, out_path):
@@ -49,7 +50,7 @@ def format_file(path, skip_up_to_date):
         elif command == "category":
           category = args
         else:
-          print "UNKNOWN COMMAND:", command, args
+          print(' '.join(["UNKNOWN COMMAND:", command, args]))
 
       elif stripped.startswith('#'):
         # Add anchors to the headers.
@@ -57,7 +58,7 @@ def format_file(path, skip_up_to_date):
         headertype = stripped[:index]
         header = stripped[index:].strip()
         anchor = header.lower().replace(' ', '-')
-        anchor = anchor.translate(None, '.?!:/')
+        anchor = re.compile('\.|\?|!|:|/').sub('', anchor)
 
         contents += indentation + headertype
         contents += '{1} <a href="#{0}" name="{0}" class="header-anchor">#</a>\n'.format(anchor, header)
@@ -84,7 +85,7 @@ def format_file(path, skip_up_to_date):
   with open(out_path, 'w') as out:
     out.write(template.format(**fields))
 
-  print "converted", basename
+  print("converted " + basename)
 
 
 def check_sass():
@@ -98,7 +99,7 @@ def check_sass():
         return
 
     subprocess.call(['sass', 'doc/site/style.scss', 'build/docs/style.css'])
-    print "built css"
+    print("built css")
 
 
 def format_files(skip_up_to_date):

script/metrics.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 
 import glob
 import fnmatch
@@ -64,17 +64,17 @@ for dir_path, dir_names, file_names in os.walk("test"):
           num_expects += 1
           continue
 
-print "source:"
-print "  files          ", num_files
-print "  semicolons     ", num_semicolons
-print "  TODOs          ", num_todos
-print "  comment lines  ", num_docs
-print "  code lines     ", num_code
-print "  empty lines    ", num_empty
-print
-print "test:"
-print "  files          ", num_test_files
-print "  TODOs          ", num_test_todos
-print "  expectations   ", num_expects
-print "  non-empty lines", num_test
-print "  empty lines    ", num_test_empty
+print("source:")
+print("  files           " + str(num_files))
+print("  semicolons      " + str(num_semicolons))
+print("  TODOs           " + str(num_todos))
+print("  comment lines   " + str(num_docs))
+print("  code lines      " + str(num_code))
+print("  empty lines     " + str(num_empty))
+print("\n")
+print("test:")
+print("  files           " + str(num_test_files))
+print("  TODOs           " + str(num_test_todos))
+print("  expectations    " + str(num_expects))
+print("  non-empty lines " + str(num_test))
+print("  empty lines     " + str(num_test_empty))

script/test.py

@@ -1,4 +1,6 @@
-#!/usr/bin/python
+#!/usr/bin/env python
+
+from __future__ import print_function
 
 from collections import defaultdict
 from os import listdir
@@ -55,11 +57,11 @@ def walk(dir, callback):
 
 def print_line(line=None):
   # Erase the line.
-  print '\033[2K',
+  print('\033[2K', end='')
   # Move the cursor to the beginning.
-  print '\r',
+  print('\r', end='')
   if line:
-    print line,
+    print(line, end='')
     sys.stdout.flush()
 
 
@@ -134,7 +136,7 @@ def run_test(path):
   # Invoke wren and run the test.
   proc = Popen([WREN_APP, path], stdout=PIPE, stderr=PIPE)
   (out, err) = proc.communicate()
-  (out, err) = out.replace('\r\n', '\n'),  err.replace('\r\n', '\n')
+  (out, err) = out.decode("utf-8").replace('\r\n', '\n'),  err.decode("utf-8").replace('\r\n', '\n')
 
   fails = []
 
@@ -193,6 +195,8 @@ def run_test(path):
       del out_lines[-1]
 
     for line in out_lines:
+      if sys.version_info < (3, 0):
+        line = line.encode('utf-8')
       if expect_index >= len(expect_output):
         fails.append('Got output "{0}" when none was expected.'.format(line))
       elif expect_output[expect_index][0] != line:
@@ -214,23 +218,23 @@ def run_test(path):
   else:
     failed += 1
     print_line(color.RED + 'FAIL' + color.DEFAULT + ': ' + path)
-    print
+    print('\n')
     for fail in fails:
-      print '     ', color.PINK + fail + color.DEFAULT
-    print
+      print('      ' + color.PINK + fail + color.DEFAULT)
+    print('\n')
 
 walk(TEST_DIR, run_test)
 
 print_line()
 if failed == 0:
-  print 'All ' + color.GREEN + str(passed) + color.DEFAULT + ' tests passed.'
+  print('All ' + color.GREEN + str(passed) + color.DEFAULT + ' tests passed.')
 else:
-  print (color.GREEN + str(passed) + color.DEFAULT + ' tests passed. ' +
+  print(color.GREEN + str(passed) + color.DEFAULT + ' tests passed. ' +
        color.RED + str(failed) + color.DEFAULT + ' tests failed.')
 
 for key in sorted(skipped.keys()):
-  print ('Skipped ' + color.YELLOW + str(skipped[key]) + color.DEFAULT +
+  print('Skipped ' + color.YELLOW + str(skipped[key]) + color.DEFAULT +
        ' tests: ' + key)
 
 if failed != 0:
-  sys.exit(1)
+  sys.exit(1)