Test for running PEP8 against all Python files. Useful to hook up to nose and as part of your CI.I modify PEP8 in two ways by default: don't enforce 4-spacing (I prefer 2-spacing), and use 100 for the default line length, because we don't use 80-column punch cards anymore.Licensed under CC0 (public domain): do what you want. http://creativecommo…

test_pep8.py

import os
import os.path
import unittest
import pep8

ignore_patterns = ('.git',)


def ignore(check_dir):
    for pattern in ignore_patterns:
        if pattern in check_dir:
            return True
    return False


class TestPep8(unittest.TestCase):
    def test_pep8(self):
        style = pep8.StyleGuide(config_file=os.path.join('.', 'setup.cfg'))
        errors = 0
        for root, _, files in os.walk('.'):
            if ignore(root):
                continue

            python_files = [os.path.join(root, f) for f in files if f.endswith('.py')]
            check = style.check_files(python_files)
            errors = check.total_errors

        self.assertEqual(errors, 0, 'PEP8 style errors')


if __name__ == '__main__':
    unittest.main()