def test_format_pep8():
    """
    Test if pep8 is respected.
    """
    pep8_checker = StyleGuide()
    files_to_check = []
    for path in list_files(".py"):
        rel_path = os.path.relpath(path, pylearn2.__path__[0])
        if rel_path in whitelist_pep8:
            continue
        else:
            files_to_check.append(path)
    report = pep8_checker.check_files(files_to_check)
    if report.total_errors > 0:
        raise AssertionError("PEP8 Format not respected")

def print_files_information_pep8():
    """
    Print the list of files which can be removed from the whitelist and the
    list of files which do not respect PEP8 formatting that aren't in the
    whitelist
    """
    infracting_files = []
    non_infracting_files = []
    pep8_checker = StyleGuide(quiet=True)
    for path in list_files(".py"):
        number_of_infractions = pep8_checker.input_file(path)
        rel_path = os.path.relpath(path, pylearn2.__path__[0])
        if number_of_infractions > 0:
            if rel_path not in whitelist_pep8:
                infracting_files.append(path)
        else:
            if rel_path in whitelist_pep8:
                non_infracting_files.append(path)
    print "Files that must be corrected or added to whitelist:"
    for file in infracting_files:
        print file
    print "Files that can be removed from whitelist:"
    for file in non_infracting_files:
        print file