Fix pep8.py and its invocation.

pep8.py:input_file() normally returns the number of errors found in a
given file, but it returns an empty dict if the file is excluded.  Change
it to return 0 instead.

config.py is auto-generated with a prefix that may be longer than
80 characters.  Exclude config.py in the pep8.py check.  This fixes
4042.

1 files changed, 1 insertions, 1 deletions

diff --git a/misc/pep8.py b/misc/pep8.py
index 3b6248c2..fef8a546 100644
--- a/misc/pep8.py
+++ b/misc/pep8.py
@@ -647,7 +647,7 @@ def input_file(filename):
     Run all checks on a Python source file.
     """
     if excluded(filename) or not filename_match(filename):
-        return {}
+        return 0
     if options.verbose:
         message('checking ' + filename)
     options.counters['files'] = options.counters.get('files', 0) + 1