How to use pycodestyle - 10 common examples

def parse_argv(argstring):
            _saved_argv = sys.argv
            sys.argv = shlex.split('pycodestyle %s /dev/null' % argstring)
            try:
                return pycodestyle.StyleGuide(parse_argv=True)
            finally:
                sys.argv = _saved_argv

def check_code_for_debugger_statements(code):
    """Process code using pycodestyle Checker and return all errors."""
    from tempfile import NamedTemporaryFile

    test_file = NamedTemporaryFile(delete=False)
    test_file.write(code.encode())
    test_file.flush()
    report = CaptureReport(options=_debugger_test_style)
    lines = [line + "\n" for line in code.split("\n")]
    checker = pycodestyle.Checker(filename=test_file.name, lines=lines, options=_debugger_test_style, report=report)

    checker.check_all()
    return report._results

Test all check functions with test cases in docstrings.
    """
    count_failed = count_all = 0
    report = BaseReport(options)
    counters = report.counters
    checks = options.physical_checks + options.logical_checks
    for name, check, argument_names in checks:
        for line in check.__doc__.splitlines():
            line = line.lstrip()
            match = SELFTEST_REGEX.match(line)
            if match is None:
                continue
            code, source = match.groups()
            lines = [part.replace(r'\t', '\t') + '\n'
                     for part in source.split(r'\n')]
            checker = Checker(lines=lines, options=options, report=report)
            checker.check_all()
            error = None
            if code == 'Okay':
                if len(counters) > len(options.benchmark_keys):
                    codes = [key for key in counters
                             if key not in options.benchmark_keys]
                    error = "incorrectly found %s" % ', '.join(codes)
            elif not counters.get(code):
                error = "failed to find %s" % code
            # Keep showing errors for multiple tests
            for key in set(counters) - set(options.benchmark_keys):
                del counters[key]
            count_all += 1
            if not error:
                if options.verbose:
                    print("%s: %s" % (code, source))

def selftest(options):
    """
    Test all check functions with test cases in docstrings.
    """
    count_failed = count_all = 0
    report = BaseReport(options)
    counters = report.counters
    checks = options.physical_checks + options.logical_checks
    for name, check, argument_names in checks:
        for line in check.__doc__.splitlines():
            line = line.lstrip()
            match = SELFTEST_REGEX.match(line)
            if match is None:
                continue
            code, source = match.groups()
            lines = [part.replace(r'\t', '\t') + '\n'
                     for part in source.split(r'\n')]
            checker = Checker(lines=lines, options=options, report=report)
            checker.check_all()
            error = None
            if code == 'Okay':
                if len(counters) > len(options.benchmark_keys):

def selftest(options):
    """
    Test all check functions with test cases in docstrings.
    """
    count_failed = count_all = 0
    report = BaseReport(options)
    counters = report.counters
    checks = options.physical_checks + options.logical_checks
    for name, check, argument_names in checks:
        for line in check.__doc__.splitlines():
            line = line.lstrip()
            match = SELFTEST_REGEX.match(line)
            if match is None:
                continue
            code, source = match.groups()
            lines = [part.replace(r'\t', '\t') + '\n'
                     for part in source.split(r'\n')]
            checker = Checker(lines=lines, options=options, report=report)
            checker.check_all()
            error = None
            if code == 'Okay':
                if len(counters) > len(options.benchmark_keys):

def test_pep8_conformance():
    """Test that we conform to PEP-8."""
    style = pycodestyle.StyleGuide(ignore=['E501', 'E402', 'W503'])

    py_files = [y for x in os.walk(os.path.abspath('.')) for y in glob(os.path.join(x[0], '*.py'))]
    py_files.append(os.path.abspath('urlwatch'))
    result = style.check_files(py_files)
    assert result.total_errors == 0, "Found #{0} code style errors".format(result.total_errors)

def setUp(self):
        self.style = pycodestyle.StyleGuide(show_source=True,
                                            ignore="E402")

def test_check_unicode(self):
        # Do not crash if lines are Unicode (Python 2.x)
        pycodestyle.register_check(DummyChecker, ['Z701'])
        source = '#\n'
        if hasattr(source, 'decode'):
            source = source.decode('ascii')

        pep8style = pycodestyle.StyleGuide()
        count_errors = pep8style.input_file('stdin', lines=[source])

        self.assertFalse(sys.stdout)
        self.assertFalse(sys.stderr)
        self.assertEqual(count_errors, 0)

def test_pep8_conformance(self):
        pep8style = pycodestyle.StyleGuide(quiet=False)
        pep8style.options.ignore = pep8style.options.ignore + tuple(['E501'])
        pep8style.input_dir('fuzzywuzzy')
        result = pep8style.check_files()
        self.assertEqual(result.total_errors, 0, "PEP8 POLICE - WOOOOOWOOOOOOOOOO")

def test_register_invalid_check(self):
        class InvalidChecker(DummyChecker):
            def __init__(self, filename):
                pass

        def check_dummy(logical, tokens):
            if False:
                yield
        pycodestyle.register_check(InvalidChecker, ['Z741'])
        pycodestyle.register_check(check_dummy, ['Z441'])

        for checkers in pycodestyle._checks.values():
            self.assertTrue(DummyChecker not in checkers)
            self.assertTrue(check_dummy not in checkers)

        self.assertRaises(TypeError, pycodestyle.register_check)