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https://github.com/pylava/pylava
Code audit tool for python (a community maintained fork of Pylama)
https://github.com/pylava/pylava
Last synced: 21 days ago
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Code audit tool for python (a community maintained fork of Pylama)
- Host: GitHub
- URL: https://github.com/pylava/pylava
- Owner: pylava
- License: mit
- Created: 2018-08-15T08:42:01.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2021-09-27T09:20:29.000Z (about 3 years ago)
- Last Synced: 2024-04-14T13:21:33.407Z (8 months ago)
- Language: Python
- Homepage:
- Size: 1.12 MB
- Stars: 121
- Watchers: 7
- Forks: 7
- Open Issues: 6
-
Metadata Files:
- Readme: README.rst
- Changelog: CHANGES.rst
- License: LICENSE.rst
Awesome Lists containing this project
- awesome-hacking-lists - pylava/pylava - Code audit tool for python (a community maintained fork of Pylama) (Python)
README
Pylava
======
Pylava is a community maintained fork of `Pylama
`_.
.. image:: https://travis-ci.com/pylava/pylava.svg?branch=master
:target: https://travis-ci.com/pylava/pylava
:alt: Build Status
.. image:: https://coveralls.io/repos/github/pylava/pylava/badge.svg?branch=master
:target: https://coveralls.io/github/pylava/pylava?branch=master
:alt: Coveralls
.. image:: https://img.shields.io/pypi/v/pylava.svg
:target: https://pypi.org/project/pylava/
:alt: Version
.. image:: https://readthedocs.org/projects/pylavadocs/badge/?version=latest
:target: https://pylavadocs.readthedocs.io/en/latest/?badge=latest
:alt: Documentation Status
Pylava is a code audit tool for Python and JavaScript. Pylava wraps
these tools:
* pycodestyle_ (formerly pep8) © 2012-2013, Florent Xicluna;
* pydocstyle_ (formerly pep257 by Vladimir Keleshev) © 2014, Amir Rachum;
* PyFlakes_ © 2005-2013, Kevin Watters;
* Mccabe_ © Ned Batchelder;
* Pylint_ © 2013, Logilab (should be installed 'pylama_pylint' module);
* Radon_ © Michele Lacchia
* gjslint_ © The Closure Linter Authors (should be installed 'pylama_gjslint' module);
.. _pycodestyle: https://github.com/PyCQA/pycodestyle
.. _pydocstyle: https://github.com/PyCQA/pydocstyle/
.. _PyFlakes: https://github.com/pyflakes/pyflakes
.. _Mccabe: http://nedbatchelder.com/blog/200803/python_code_complexity_microtool.html
.. _Pylint: http://pylint.org
.. _Radon: https://github.com/rubik/radon
.. _gjslint: https://developers.google.com/closure/utilities
.. contents::
Credits
-------
Thanks to:
- `Kirill Klenov `_ for creating and
maintaining the original Pylama project. This fork named Pylava is a
derivative work based on Kirill Klenov's Pylama project.
- Contributors to Pylama.
- Contributors to Pylava.
New in Pylava
-------------
This fork of Pylama differs from the original Pylama project in the
following areas:
- Pylama does not work with Python 3.7 due to `Pylama issue #123
`_. While there is a pull
request to resolve the issue, they are not being merged into the
project due to lack of maintenance. This fork named Pylava is meant
for merging useful pull requests into the project, so that the project
can satsify the current needs of Python developers. This is the
primary reason why this fork was created.
- The licensing terms of Pylama are unclear. The README of the original
Pylama project mentioned:
Licensed under a `BSD license`_.
It is unclear which BSD license (BSD-3-Clause or BSD-2-Clause) is
meant here. Moreover there are references to the GNU Lesser General
Public License (GNU LGPL) also in the project. See `Pylama issue #64
`_ for more about this.
This fork interprets the license section of the README to mean that
the Pylama project is available under a BSD license in addition to
certain files being available under GNU LGPL due to the mentions of
GNU LGPL in such files.
Further, this fork named Pylava (a derivative work based on Pylama) is
distributed under the terms of the MIT license which is allowed by BSD
licenses.
- While the original Pylama project uses the ``develop`` branch as the
active development branch, this fork uses the ``master`` branch as the
active development branch.
.. _BSD license: http://www.linfo.org/bsdlicense.html
Documentation
-------------
Documentation is available at https://pylavadocs.readthedocs.io/. Pull
requests with documentation enhancements and/or fixes are awesome and
most welcome.
Requirements
------------
- Python (2.7, 3.5, 3.6, 3.7, 3.8, or 3.9)
- To use JavaScript checker (``gjslint``) you need to install
``python-gflags`` with ``pip install python-gflags``.
- If your tests are failing on Win platform you are missing:
``curses`` - http://www.lfd.uci.edu/~gohlke/pythonlibs/
(The curses library supplies a terminal-independent screen-painting
and keyboard-handling facility for text-based terminals)
Installation
------------
Enter the following command to install Pylava. ::
$ pip install pylava
With Python 3, you may need to enter the following command instead. ::
$ pip3 install pylava
Quick Start
-----------
Pylava is easy to use and really fun for checking code quality. Just run
`pylava` and get common output from all pylava plugins (pycodestyle_,
PyFlakes_ and etc)
Recursively check the current directory. ::
$ pylava
Recursively check a path. ::
$ pylava
Ignore errors ::
$ pylava -i W,E501
Note: You could choose a group of errors ``D``, ``E1``, etc., or special
errors ``C0312``.
Choose code checkers ::
$ pylava -l "pycodestyle,mccabe"
Choose code checkers for JavaScript::
$ pylava --linters=gjslint --ignore=E:0010
.. _options:
Set Pylava (checkers) options
-----------------------------
Command line options
~~~~~~~~~~~~~~~~~~~~
::
$ pylava --help
usage: pylava [-h] [--verbose] [--version] [--format {pycodestyle,pylint}]
[--select SELECT] [--sort SORT] [--linters LINTERS]
[--ignore IGNORE] [--skip SKIP] [--report REPORT] [--hook]
[--async] [--options OPTIONS] [--force] [--abspath]
[paths [paths ...]]
Code audit tool for python.
positional arguments:
paths Paths to files or directories for code check.
optional arguments:
-h, --help show this help message and exit
--verbose, -v Verbose mode.
--version show program's version number and exit
--format {pycodestyle,pylint}, -f {pycodestyle,pylint}
Choose errors format (pycodestyle, pylint).
--select SELECT, -s SELECT
Select errors and warnings. (comma-separated list)
--sort SORT Sort result by error types. Ex. E,W,D
--linters LINTERS, -l LINTERS
Select linters. (comma-separated). Choices are
mccabe,pycodestyle,pyflakes,pydocstyle.
--ignore IGNORE, -i IGNORE
Ignore errors and warnings. (comma-separated)
--skip SKIP Skip files by masks (comma-separated, Ex.
*/messages.py)
--report REPORT, -r REPORT
Send report to file [REPORT]
--hook Install Git (Mercurial) hook.
--async Enable async mode. Useful for checking a lot of
files. Not supported by pylint.
--options FILE, -o FILE
Specify configuration file. Looks for pylava.ini,
setup.cfg, tox.ini, or pytest.ini in the current
directory.
--force, -F Force code checking (if linter doesnt allow)
--abspath, -a Use absolute paths in output.
File modelines
~~~~~~~~~~~~~~
You can set options for Pylava inside a source file. Use
pylava *modeline* for this.
Format: ::
# pylava:{name1}={value1}:{name2}={value2}:...
Example: ::
.. Somethere in code
# pylava:ignore=W:select=W301
Disable code checking for current file: ::
.. Somethere in code
# pylava:skip=1
Those options have a higher priority.
Skip lines (noqa)
~~~~~~~~~~~~~~~~~
Just add `# noqa` in end of line to ignore.
Example:
.. code:: python
def urgent_fuction():
unused_var = 'No errors here' # noqa
Configuration file
~~~~~~~~~~~~~~~~~~
Pylava looks for a configuration file in the current directory.
The program searches for the first matching ini-style configuration file in
the directories of command line argument. Pylava looks for the configuration
in this order: ::
pylava.ini
setup.cfg
tox.ini
pytest.ini
The ``--option`` / ``-o`` argument can be used to specify a
configuration file.
Pylava searches for sections whose names start with `pylava`.
The `pylava` section configures global options like `linters` and `skip`.
Example: ::
[pylava]
format = pylint
skip = */.tox/*,*/.env/*
linters = pylint,mccabe
ignore = F0401,C0111,E731
Set Code-checkers' options
~~~~~~~~~~~~~~~~~~~~~~~~~~
You could set options for special code checker with pylava configurations.
Example: ::
[pylava:pyflakes]
builtins = _
[pylava:pycodestyle]
max_line_length = 100
[pylava:pylint]
max_line_length = 100
disable = R
See code-checkers' documentation for more info.
Set options for file (group of files)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
You could set options for special file (group of files)
with sections:
The options have a higher priority than in the `pylava` section.
Example: ::
[pylava:*/pylava/main.py]
ignore = C901,R0914,W0212
select = R
[pylava:*/tests.py]
ignore = C0110
[pylava:*/setup.py]
skip = 1
Pytest integration
------------------
Pylava has Pytest_ support. The package automatically registers itself
as a pytest plugin during installation. Pylava also supports
`pytest_cache` plugin.
Check files with pylava: ::
pytest --pylava ...
Recommended way to set pylava options when using pytest — configuration
files (see below).
.. _Pytest: http://pytest.org
Writing a linter
----------------
You can write a custom extension for Pylava. Custom linter should be a
python module. Name should be like ``pylava_``.
In ``setup.py``, ``pylava.linter`` entry point should be defined.
Example:
.. code:: python
setup(
# ...
entry_points={
'pylava.linter': ['lintername = pylava_lintername.main:Linter'],
}
# ...
)
``Linter`` should be instance of ``pylava.lint.Linter`` class. Must
implement two methods:
- ``allow`` takes a path and returns true if linter can check this file for errors.
- ``run`` takes a path and meta keywords params and returns a list of errors.
Example
~~~~~~~
Just a virtual 'WOW' checker.
setup.py:
.. code:: python
setup(
name='pylava_wow',
install_requires=[ 'setuptools' ],
entry_points={
'pylava.linter': ['wow = pylava_wow.main:Linter'],
}
# ...
)
pylava_wow.py:
.. code:: python
from pylava.lint import Linter as BaseLinter
class Linter(BaseLinter):
def allow(self, path):
return 'wow' in path
def run(self, path, **meta):
with open(path) as f:
if 'wow' in f.read():
return [{
lnum: 0,
col: 0,
text: 'Wow has been found.',
type: 'WOW'
}]
Run pylava from python code
---------------------------
.. code:: python
from pylava.main import check_path, parse_options
# Use and/or modify 0 or more of the options defined as keys in the
# variable my_redefined_options below. To use defaults for any
# option, remove that key completely.
my_redefined_options = {
'linters': ['pep257', 'pydocstyle', 'pycodestyle', 'pyflakes' ...],
'ignore': ['D203', 'D213', 'D406', 'D407', 'D413' ...],
'select': ['R1705' ...],
'sort': 'F,E,W,C,D,...',
'skip': '*__init__.py,*/test/*.py,...',
'async': True,
'force': True
...
}
# relative path of the directory in which pylama should check
my_path = '...'
options = parse_options([my_path], **my_redefined_options)
errors = check_path(options, rootdir='.')
Support
-------
To report bugs, suggest improvements, or ask questions, please create a
new issue at http://github.com/pylava/pylava/issues.
Contributing
------------
Development of Pylava happens at the ``master`` branch of
https://github.com/pylava/pylava.
Contributors
------------
See AUTHORS_.
.. _AUTHORS: https://github.com/pylava/pylava/blob/master/AUTHORS.rst
License
-------
This is free software. You are permitted to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of it, under the
terms of the MIT License. See LICENSE.rst_ for the complete license.
This software is provided WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
LICENSE.rst_ for the complete disclaimer.
.. _LICENSE.rst: https://github.com/pylava/pylava/blob/master/LICENSE.rst
The original README from Pylama that made Pylama available under a BSD
license and the original LICENSE file with the GNU LGPL license text are
archived in the `pylama-archive
`_
directory.