Update project setup.

pre_commit_hooks/check_yaml.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 
 import argparse
 import sys
@@ -17,7 +18,7 @@ def check_yaml(argv):
         try:
             yaml.load(open(filename))
         except yaml.YAMLError as e:
-            print e
+            print(e)
             retval = 1
     return retval
 

pre_commit_hooks/debug_statement_hook.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 
 import argparse
 import ast
@@ -39,7 +40,14 @@ def check_file_for_debug_statements(filename):
     visitor.visit(ast_obj)
     if visitor.debug_import_statements:
         for debug_statement in visitor.debug_import_statements:
-            print '{0}:{2}:{3} - {1} imported'.format(filename, *debug_statement)
+            print(
+                '{0}:{1}:{2} - {3} imported'.format(
+                    filename,
+                    debug_statement.line,
+                    debug_statement.col,
+                    debug_statement.name,
+                )
+            )
         return 1
     else:
         return 0

pre_commit_hooks/end_of_file_fixer.py

@@ -1,4 +1,3 @@
-
 from __future__ import print_function
 from __future__ import unicode_literals
 
@@ -18,11 +17,11 @@ def fix_file(file_obj):
         return 0
     last_character = file_obj.read(1)
     # last_character will be '' for an empty file
-    if last_character != '\n' and last_character != '':
-        file_obj.write('\n')
+    if last_character != b'\n' and last_character != b'':
+        file_obj.write(b'\n')
         return 1
 
-    while last_character == '\n':
+    while last_character == b'\n':
         # Deal with the beginning of the file
         if file_obj.tell() == 1:
             # If we've reached the beginning of the file and it is all

pre_commit_hooks/tests_should_end_in_test.py

@@ -1,4 +1,3 @@
-
 from __future__ import print_function
 
 import sys
@@ -22,4 +21,4 @@ def validate_files(argv):
 
 
 if __name__ == '__main__':
-    sys.exit(entry())
+    sys.exit(validate_files())

pre_commit_hooks/trailing_whitespace_fixer.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 
 import argparse
 import sys
@@ -12,13 +13,13 @@ def fix_trailing_whitespace(argv):
     parser.add_argument('filenames', nargs='*', help='Filenames to fix')
     args = parser.parse_args(argv)
 
-    bad_whitespace_files = filter(bool, local['grep'][
+    bad_whitespace_files = local['grep'][
         ('-l', '[[:space:]]$') + tuple(args.filenames)
-    ](retcode=None).splitlines())
+    ](retcode=None).strip().splitlines()
 
     if bad_whitespace_files:
         for bad_whitespace_file in bad_whitespace_files:
-            print 'Fixing {0}'.format(bad_whitespace_file)
+            print('Fixing {0}'.format(bad_whitespace_file))
             local['sed']['-i', '-e', 's/[[:space:]]*$//', bad_whitespace_file]()
         return 1
     else:

pre_commit_hooks/util.py

@@ -1,4 +1,3 @@
-
 import functools
 import sys