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Add PEP8 styleguide checker. 

Hint for VIM users:
	Make sure your :pwd is the dir that contains the Makefile.
	Then run :make, and after that ran through, run :cw.
	You will get a split view with one styleguide error per line.
	By choosing a line, the editor split view jumps to the proper
	code line automatically. :cn brings you to the next error, :cp
	shows the previous error.
This commit is contained in:
Christopher Denter 2011-01-12 19:05:55 +01:00
parent f508fe27fd
commit 44b258fbce
3 changed files with 1054 additions and 0 deletions
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9
Makefile Normal file
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PYTHON = python
CHECKSCRIPT = kivy/tools/pep8checker/pep8kivy.py
KIVY_DIR = kivy/
style:
$(PYTHON) $(CHECKSCRIPT) $(KIVY_DIR)
stylereport:
$(PYTHON) $(CHECKSCRIPT) -html $(KIVY_DIR)

916
kivy/tools/pep8checker/pep8.py Normal file
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#!/usr/bin/python
# pep8.py - Check Python source code formatting, according to PEP 8
# Copyright (C) 2006 Johann C. Rocholl <johann@browsershots.org>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
"""
Check Python source code formatting, according to PEP 8:
http://www.python.org/dev/peps/pep-0008/
For usage and a list of options, try this:
$ python pep8.py -h
This program and its regression test suite live here:
http://svn.browsershots.org/trunk/devtools/pep8/
http://trac.browsershots.org/browser/trunk/devtools/pep8/
Groups of errors and warnings:
E errors
W warnings
100 indentation
200 whitespace
300 blank lines
400 imports
500 line length
600 deprecation
700 statements
You can add checks to this program by writing plugins. Each plugin is
a simple function that is called for each line of source code, either
physical or logical.
Physical line:
- Raw line of text from the input file.
Logical line:
- Multi-line statements converted to a single line.
- Stripped left and right.
- Contents of strings replaced with 'xxx' of same length.
- Comments removed.
The check function requests physical or logical lines by the name of
the first argument:
def maximum_line_length(physical_line)
def extraneous_whitespace(logical_line)
def blank_lines(logical_line, blank_lines, indent_level, line_number)
The last example above demonstrates how check plugins can request
additional information with extra arguments. All attributes of the
Checker object are available. Some examples:
lines: a list of the raw lines from the input file
tokens: the tokens that contribute to this logical line
line_number: line number in the input file
blank_lines: blank lines before this one
indent_char: first indentation character in this file (' ' or '\t')
indent_level: indentation (with tabs expanded to multiples of 8)
previous_indent_level: indentation on previous line
previous_logical: previous logical line
The docstring of each check function shall be the relevant part of
text from PEP 8. It is printed if the user enables --show-pep8.
"""
import os
import sys
import re
import time
import inspect
import tokenize
from optparse import OptionParser
from keyword import iskeyword
from fnmatch import fnmatch
__version__ = '0.2.0'
__revision__ = '$Rev$'
default_exclude = '.svn,CVS,*.pyc,*.pyo'
indent_match = re.compile(r'([ \t]*)').match
raise_comma_match = re.compile(r'raise\s+\w+\s*(,)').match
equals_boolean_search = re.compile(r'([!=]=\s*(True|False))|((True|False)\s*[!=]=)').search
equals_None_search = re.compile(r'([!=]=\s*None)|(None\s*[!=]=)').search
not_one_ws_around_operators_match = re.compile(r'^[^\(\[]+[^\s](\+|\-|\*|/|%|\^|&|\||=|<|>|>>|<<|\+=|\-=|\*=|/=|%=|\^=|&=|\|=|==|<=|>=|>>=|<<=|!=|<>)[^\s][^\)\]]+$').match
operators = """
+ - * / % ^ & | = < > >> <<
+= -= *= /= %= ^= &= |= == <= >= >>= <<=
!= <> :
in is or not and
""".split()
options = None
args = None
##############################################################################
# Plugins (check functions) for physical lines
##############################################################################
def tabs_or_spaces(physical_line, indent_char):
"""
Never mix tabs and spaces.
The most popular way of indenting Python is with spaces only. The
second-most popular way is with tabs only. Code indented with a mixture
of tabs and spaces should be converted to using spaces exclusively. When
invoking the Python command line interpreter with the -t option, it issues
warnings about code that illegally mixes tabs and spaces. When using -tt
these warnings become errors. These options are highly recommended!
"""
indent = indent_match(physical_line).group(1)
for offset, char in enumerate(indent):
if char != indent_char:
return offset, "E101 indentation contains mixed spaces and tabs"
def tabs_obsolete(physical_line):
"""
For new projects, spaces-only are strongly recommended over tabs. Most
editors have features that make this easy to do.
"""
indent = indent_match(physical_line).group(1)
if indent.count('\t'):
return indent.index('\t'), "W191 indentation contains tabs"
def trailing_whitespace(physical_line):
"""
JCR: Trailing whitespace is superfluous.
"""
physical_line = physical_line.rstrip('\n') # chr(10), newline
physical_line = physical_line.rstrip('\r') # chr(13), carriage return
physical_line = physical_line.rstrip('\x0c') # chr(12), form feed, ^L
stripped = physical_line.rstrip()
if physical_line != stripped:
return len(stripped), "W291 trailing whitespace"
def trailing_blank_lines(physical_line, lines, line_number):
"""
JCR: Trailing blank lines are superfluous.
"""
if physical_line.strip() == '' and line_number == len(lines):
return 0, "W391 blank line at end of file"
def missing_newline(physical_line):
"""
JCR: The last line should have a newline.
"""
if physical_line.rstrip() == physical_line:
return len(physical_line), "W292 no newline at end of file"
def maximum_line_length(physical_line):
"""
Limit all lines to a maximum of 79 characters.
There are still many devices around that are limited to 80 character
lines; plus, limiting windows to 80 characters makes it possible to have
several windows side-by-side. The default wrapping on such devices looks
ugly. Therefore, please limit all lines to a maximum of 79 characters.
For flowing long blocks of text (docstrings or comments), limiting the
length to 72 characters is recommended.
"""
length = len(physical_line.rstrip())
if length > 79:
return 79, "E501 line too long (%d characters)" % length
def crlf_lines(physical_line):
"""
Line contains CR (e.g. as a CRLF line ending).
Many free software projects have a strong focus on POSIX platforms (like
Linux, *BSD, Unix, Mac OS X, etc.) and they all use LF-only line endings.
Only Win32 platform uses CRLF line endings.
So if you have a Win32-only source code using CRLF line endings, you might
want to exclude this test.
"""
pos = physical_line.find('\r')
if pos >= 0:
return pos, "W293 line contains CR char(s)"
##############################################################################
# Plugins (check functions) for logical lines
##############################################################################
def blank_lines(logical_line, blank_lines, indent_level, line_number,
previous_logical):
"""
Separate top-level function and class definitions with two blank lines.
Method definitions inside a class are separated by a single blank line.
Extra blank lines may be used (sparingly) to separate groups of related
functions. Blank lines may be omitted between a bunch of related
one-liners (e.g. a set of dummy implementations).
Use blank lines in functions, sparingly, to indicate logical sections.
"""
if line_number == 1:
return # Don't expect blank lines before the first line
if previous_logical.startswith('@'):
return # Don't expect blank lines after function decorator
if (logical_line.startswith('def ') or
logical_line.startswith('class ') or
logical_line.startswith('@')):
if indent_level > 0 and blank_lines != 1:
return 0, "E301 expected 1 blank line, found %d" % blank_lines
if indent_level == 0 and blank_lines != 2:
return 0, "E302 expected 2 blank lines, found %d" % blank_lines
if blank_lines > 2:
return 0, "E303 too many blank lines (%d)" % blank_lines
def extraneous_whitespace(logical_line):
"""
Avoid extraneous whitespace in the following situations:
- Immediately inside parentheses, brackets or braces.
- Immediately before a comma, semicolon, or colon.
"""
line = logical_line
for char in '([{':
found = line.find(char + ' ')
if found > -1:
return found + 1, "E201 whitespace after '%s'" % char
for char in '}])':
found = line.find(' ' + char)
if found > -1 and line[found - 1] != ',':
return found, "E202 whitespace before '%s'" % char
for char in ',;:':
found = line.find(' ' + char)
if found > -1:
return found, "E203 whitespace before '%s'" % char
def missing_whitespace(logical_line):
"""
JCR: Each comma, semicolon or colon should be followed by whitespace.
"""
line = logical_line
for index in range(len(line) - 1):
char = line[index]
if char in ',;:' and line[index + 1] != ' ':
before = line[:index]
if char == ':' and before.count('[') > before.count(']'):
continue # Slice syntax, no space required
return index, "E231 missing whitespace after '%s'" % char
def indentation(logical_line, previous_logical, indent_char,
indent_level, previous_indent_level):
"""
Use 4 spaces per indentation level.
For really old code that you don't want to mess up, you can continue to
use 8-space tabs.
"""
if indent_char == ' ' and indent_level % 4:
return 0, "E111 indentation is not a multiple of four"
indent_expect = previous_logical.endswith(':')
if indent_expect and indent_level <= previous_indent_level:
return 0, "E112 expected an indented block"
if indent_level > previous_indent_level and not indent_expect:
return 0, "E113 unexpected indentation"
def whitespace_before_parameters(logical_line, tokens):
"""
Avoid extraneous whitespace in the following situations:
- Immediately before the open parenthesis that starts the argument
list of a function call.
- Immediately before the open parenthesis that starts an indexing or
slicing.
"""
prev_type = tokens[0][0]
prev_text = tokens[0][1]
prev_end = tokens[0][3]
for index in range(1, len(tokens)):
token_type, text, start, end, line = tokens[index]
if (token_type == tokenize.OP and
text in '([' and
start != prev_end and
prev_type == tokenize.NAME and
(index < 2 or tokens[index - 2][1] != 'class') and
(not iskeyword(prev_text))):
return prev_end, "E211 whitespace before '%s'" % text
prev_type = token_type
prev_text = text
prev_end = end
def extra_whitespace_around_operator(logical_line):
"""
Avoid extraneous whitespace in the following situations:
- More than one space around an assignment (or other) operator to
align it with another.
"""
line = logical_line
for operator in operators:
found = line.find(' ' + operator)
if found > -1:
return found, "E221 multiple spaces before operator"
found = line.find(operator + ' ')
if found > -1:
return found, "E222 multiple spaces after operator"
found = line.find('\t' + operator)
if found > -1:
return found, "E223 tab before operator"
found = line.find(operator + '\t')
if found > -1:
return found, "E224 tab after operator"
def whitespace_around_operator(logical_line):
"""
Have exactly 1 space left and right of the operator.
"""
match = not_one_ws_around_operators_match(logical_line)
if match and not 'lambda' in logical_line:
return match.start(1), "E225 operators shall be surrounded by a single space on each side %s" % logical_line
def whitespace_around_comma(logical_line):
"""
Avoid extraneous whitespace in the following situations:
- More than one space around an assignment (or other) operator to
align it with another.
JCR: This should also be applied around comma etc.
"""
line = logical_line
for separator in ',;:':
found = line.find(separator + ' ')
if found > -1:
return found + 1, "E241 multiple spaces after '%s'" % separator
found = line.find(separator + '\t')
if found > -1:
return found + 1, "E242 tab after '%s'" % separator
def imports_on_separate_lines(logical_line):
"""
Imports should usually be on separate lines.
"""
line = logical_line
if line.startswith('import '):
found = line.find(',')
if found > -1:
return found, "E401 multiple imports on one line"
def compound_statements(logical_line):
"""
Compound statements (multiple statements on the same line) are
generally discouraged.
"""
line = logical_line
found = line.find(':')
if -1 < found < len(line) - 1:
before = line[:found]
if (before.count('{') <= before.count('}') and # {'a': 1} (dict)
before.count('[') <= before.count(']') and # [1:2] (slice)
not re.search(r'\blambda\b', before)): # lambda x: x
return found, "E701 multiple statements on one line (colon)"
found = line.find(';')
if -1 < found:
return found, "E702 multiple statements on one line (semicolon)"
def python_3000_has_key(logical_line):
"""
The {}.has_key() method will be removed in the future version of
Python. Use the 'in' operation instead, like:
d = {"a": 1, "b": 2}
if "b" in d:
print d["b"]
"""
pos = logical_line.find('.has_key(')
if pos > -1:
return pos, "W601 .has_key() is deprecated, use 'in'"
def python_3000_raise_comma(logical_line):
"""
When raising an exception, use "raise ValueError('message')"
instead of the older form "raise ValueError, 'message'".
The paren-using form is preferred because when the exception arguments
are long or include string formatting, you don't need to use line
continuation characters thanks to the containing parentheses. The older
form will be removed in Python 3000.
"""
match = raise_comma_match(logical_line)
if match:
return match.start(1), "W602 deprecated form of raising exception"
def dumb_equals_boolean(logical_line):
"""
Using "if x == True:" or "if x == False:" is wrong in any case:
First if you already have a boolean, you don't need to compare it to
another boolean. Just use "if x:" or "if not x:".
Second, even if you have some sort of "tristate logic", not only using
True/False, but other values, then you want to use "if x is True:" or
"if x is False:" because there is exactly one True and one False object.
"""
match = equals_boolean_search(logical_line)
if match:
return match.start(1), "E798 don't use 'x == <boolean>', but just 'x' or 'not x' or 'x is <boolean>'"
def dumb_equals_None(logical_line):
"""
Using "if x == None:" is wrong in any case:
You either want to use "if x is None:" (there is only 1 None object) or -
in some simple cases - just "if not x:".
"""
match = equals_None_search(logical_line)
if match:
return match.start(1), "E799 don't use 'x == None', but just 'x is None' or 'not x'"
##############################################################################
# Helper functions
##############################################################################
def expand_indent(line):
"""
Return the amount of indentation.
Tabs are expanded to the next multiple of 8.
>>> expand_indent(' ')
4
>>> expand_indent('\\t')
8
>>> expand_indent(' \\t')
8
>>> expand_indent(' \\t')
8
>>> expand_indent(' \\t')
16
"""
result = 0
for char in line:
if char == '\t':
result = result / 8 * 8 + 8
elif char == ' ':
result += 1
else:
break
return result
##############################################################################
# Framework to run all checks
##############################################################################
def message(text):
"""Print a message."""
# print >> sys.stderr, options.prog + ': ' + text
# print >> sys.stderr, text
print text
def find_checks(argument_name):
"""
Find all globally visible functions where the first argument name
starts with argument_name.
"""
checks = []
function_type = type(find_checks)
for name, function in globals().iteritems():
if type(function) is function_type:
args = inspect.getargspec(function)[0]
if len(args) >= 1 and args[0].startswith(argument_name):
checks.append((name, function, args))
checks.sort()
return checks
def mute_string(text):
"""
Replace contents with 'xxx' to prevent syntax matching.
>>> mute_string('"abc"')
'"xxx"'
>>> mute_string("'''abc'''")
"'''xxx'''"
>>> mute_string("r'abc'")
"r'xxx'"
"""
start = 1
end = len(text) - 1
# String modifiers (e.g. u or r)
if text.endswith('"'):
start += text.index('"')
elif text.endswith("'"):
start += text.index("'")
# Triple quotes
if text.endswith('"""') or text.endswith("'''"):
start += 2
end -= 2
return text[:start] + 'x' * (end - start) + text[end:]
class Checker:
"""
Load a Python source file, tokenize it, check coding style.
"""
def __init__(self, filename):
self.filename = filename
self.lines = file(filename, 'rb').readlines()
self.physical_checks = find_checks('physical_line')
self.logical_checks = find_checks('logical_line')
options.counters['physical lines'] = \
options.counters.get('physical lines', 0) + len(self.lines)
def readline(self):
"""
Get the next line from the input buffer.
"""
self.line_number += 1
if self.line_number > len(self.lines):
return ''
return self.lines[self.line_number - 1]
def readline_check_physical(self):
"""
Check and return the next physical line. This method can be
used to feed tokenize.generate_tokens.
"""
line = self.readline()
if line:
self.check_physical(line)
return line
def run_check(self, check, argument_names):
"""
Run a check plugin.
"""
arguments = []
for name in argument_names:
arguments.append(getattr(self, name))
return check(*arguments)
def check_physical(self, line):
"""
Run all physical checks on a raw input line.
"""
self.physical_line = line
if self.indent_char is None and len(line) and line[0] in ' \t':
self.indent_char = line[0]
for name, check, argument_names in self.physical_checks:
result = self.run_check(check, argument_names)
if result is not None:
offset, text = result
self.report_error(self.line_number, offset, text, check)
def build_tokens_line(self):
"""
Build a logical line from tokens.
"""
self.mapping = []
logical = []
length = 0
previous = None
for token in self.tokens:
token_type, text = token[0:2]
if token_type in (tokenize.COMMENT, tokenize.NL,
tokenize.INDENT, tokenize.DEDENT,
tokenize.NEWLINE):
continue
if token_type == tokenize.STRING:
text = mute_string(text)
if previous:
end_line, end = previous[3]
start_line, start = token[2]
if end_line != start_line: # different row
if self.lines[end_line - 1][end - 1] not in '{[(':
logical.append(' ')
length += 1
elif end != start: # different column
fill = self.lines[end_line - 1][end:start]
logical.append(fill)
length += len(fill)
self.mapping.append((length, token))
logical.append(text)
length += len(text)
previous = token
self.logical_line = ''.join(logical)
assert self.logical_line.lstrip() == self.logical_line
assert self.logical_line.rstrip() == self.logical_line
def check_logical(self):
"""
Build a line from tokens and run all logical checks on it.
"""
options.counters['logical lines'] = \
options.counters.get('logical lines', 0) + 1
self.build_tokens_line()
first_line = self.lines[self.mapping[0][1][2][0] - 1]
indent = first_line[:self.mapping[0][1][2][1]]
self.previous_indent_level = self.indent_level
self.indent_level = expand_indent(indent)
if options.verbose >= 2:
print self.logical_line[:80].rstrip()
for name, check, argument_names in self.logical_checks:
if options.verbose >= 3:
print ' ', name
result = self.run_check(check, argument_names)
if result is not None:
offset, text = result
if type(offset) is tuple:
original_number, original_offset = offset
else:
for token_offset, token in self.mapping:
if offset >= token_offset:
original_number = token[2][0]
original_offset = (token[2][1]
+ offset - token_offset)
self.report_error(original_number, original_offset,
text, check)
self.previous_logical = self.logical_line
def check_all(self):
"""
Run all checks on the input file.
"""
self.file_errors = 0
self.line_number = 0
self.indent_char = None
self.indent_level = 0
self.previous_logical = ''
self.blank_lines = 0
self.tokens = []
parens = 0
for token in tokenize.generate_tokens(self.readline_check_physical):
# print tokenize.tok_name[token[0]], repr(token)
self.tokens.append(token)
token_type, text = token[0:2]
if token_type == tokenize.OP and text in '([{':
parens += 1
if token_type == tokenize.OP and text in '}])':
parens -= 1
if token_type == tokenize.NEWLINE and not parens:
self.check_logical()
self.blank_lines = 0
self.tokens = []
if token_type == tokenize.NL and not parens:
self.blank_lines += 1
self.tokens = []
if token_type == tokenize.COMMENT:
self.blank_lines = 0
return self.file_errors
def report_error(self, line_number, offset, text, check):
"""
Report an error, according to options.
"""
if options.quiet == 1 and not self.file_errors:
message(self.filename)
code = text[:4]
if ignore_code(code):
return
self.file_errors += 1
options.counters[code] = options.counters.get(code, 0) + 1
options.messages[code] = text[5:]
if options.quiet:
return
if options.testsuite:
base = os.path.basename(self.filename)[:4]
if base == code:
return
if base[0] == 'E' and code[0] == 'W':
return
if options.counters[code] == 1 or options.repeat:
message("%s:%s:%d: %s" %
(self.filename, line_number, offset + 1, text))
if options.show_source:
line = self.lines[line_number - 1]
message(line.rstrip())
message(' ' * offset + '^')
if options.show_pep8:
message(check.__doc__.lstrip('\n').rstrip())
def input_file(filename):
"""
Run all checks on a Python source file.
"""
if excluded(filename) or not filename_match(filename):
return {}
if options.verbose:
message('checking ' + filename)
options.counters['files'] = options.counters.get('files', 0) + 1
errors = Checker(filename).check_all()
if options.testsuite and not errors:
message("%s: %s" % (filename, "no errors found"))
def input_dir(dirname):
"""
Check all Python source files in this directory and all subdirectories.
"""
dirname = dirname.rstrip('/')
if excluded(dirname):
return
for root, dirs, files in os.walk(dirname):
if options.verbose:
message('directory ' + root)
options.counters['directories'] = \
options.counters.get('directories', 0) + 1
dirs.sort()
for subdir in dirs:
if excluded(subdir):
dirs.remove(subdir)
files.sort()
for filename in files:
input_file(os.path.join(root, filename))
def excluded(filename):
"""
Check if options.exclude contains a pattern that matches filename.
"""
basename = os.path.basename(filename)
for pattern in options.exclude:
if fnmatch(basename, pattern):
# print basename, 'excluded because it matches', pattern
return True
def filename_match(filename):
"""
Check if options.filename contains a pattern that matches filename.
If options.filename is unspecified, this always returns True.
"""
if not options.filename:
return True
for pattern in options.filename:
if fnmatch(filename, pattern):
return True
def ignore_code(code):
"""
Check if options.ignore contains a prefix of the error code.
"""
for ignore in options.ignore:
if code.startswith(ignore):
return True
def get_error_statistics():
"""Get error statistics."""
return get_statistics("E")
def get_warning_statistics():
"""Get warning statistics."""
return get_statistics("W")
def get_statistics(prefix=''):
"""
Get statistics for message codes that start with the prefix.
prefix='' matches all errors and warnings
prefix='E' matches all errors
prefix='W' matches all warnings
prefix='E4' matches all errors that have to do with imports
"""
stats = []
keys = options.messages.keys()
keys.sort()
for key in keys:
if key.startswith(prefix):
stats.append('%-7s %s %s' %
(options.counters[key], key, options.messages[key]))
return stats
def print_statistics(prefix=''):
"""Print overall statistics (number of errors and warnings)."""
for line in get_statistics(prefix):
print line
def print_benchmark(elapsed):
"""
Print benchmark numbers.
"""
print '%-7.2f %s' % (elapsed, 'seconds elapsed')
keys = ['directories', 'files',
'logical lines', 'physical lines']
for key in keys:
if key in options.counters:
print '%-7d %s per second (%d total)' % (
options.counters[key] / elapsed, key,
options.counters[key])
def process_options(arglist=None):
"""
Process options passed either via arglist or via command line args.
"""
global options, args
usage = "%prog [options] input ..."
parser = OptionParser(usage)
parser.add_option('-v', '--verbose', default=0, action='count',
help="print status messages, or debug with -vv")
parser.add_option('-q', '--quiet', default=0, action='count',
help="report only file names, or nothing with -qq")
parser.add_option('--exclude', metavar='patterns', default=default_exclude,
help="skip matches (default %s)" % default_exclude)
parser.add_option('--filename', metavar='patterns',
help="only check matching files (e.g. *.py)")
parser.add_option('--ignore', metavar='errors', default='',
help="skip errors and warnings (e.g. E4,W)")
parser.add_option('--repeat', action='store_true',
help="show all occurrences of the same error")
parser.add_option('--show-source', action='store_true',
help="show source code for each error")
parser.add_option('--show-pep8', action='store_true',
help="show text of PEP 8 for each error")
parser.add_option('--statistics', action='store_true',
help="count errors and warnings")
parser.add_option('--benchmark', action='store_true',
help="measure processing speed")
parser.add_option('--testsuite', metavar='dir',
help="run regression tests from dir")
parser.add_option('--doctest', action='store_true',
help="run doctest on myself")
options, args = parser.parse_args(arglist)
if options.testsuite:
args.append(options.testsuite)
if len(args) == 0:
parser.error('input not specified')
options.prog = os.path.basename(sys.argv[0])
options.exclude = options.exclude.split(',')
for index in range(len(options.exclude)):
options.exclude[index] = options.exclude[index].rstrip('/')
if options.filename:
options.filename = options.filename.split(',')
if options.ignore:
options.ignore = options.ignore.split(',')
else:
options.ignore = []
options.counters = {}
options.messages = {}
return options, args
def _main():
"""
Parse options and run checks on Python source.
"""
options, args = process_options()
if options.doctest:
import doctest
return doctest.testmod()
start_time = time.time()
for path in args:
if os.path.isdir(path):
input_dir(path)
else:
input_file(path)
elapsed = time.time() - start_time
if options.statistics:
print_statistics()
if options.benchmark:
print_benchmark(elapsed)
if __name__ == '__main__':
_main()

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