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178 lines
4.2 KiB
Text
178 lines
4.2 KiB
Text
Metadata-Version: 2.0
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Name: mccabe
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Version: 0.6.1
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Summary: McCabe checker, plugin for flake8
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Home-page: https://github.com/pycqa/mccabe
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Author: Ian Cordasco
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Author-email: graffatcolmingov@gmail.com
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License: Expat license
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Keywords: flake8 mccabe
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Platform: UNKNOWN
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Classifier: Development Status :: 5 - Production/Stable
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Classifier: Environment :: Console
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Classifier: Intended Audience :: Developers
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Classifier: License :: OSI Approved :: MIT License
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Classifier: Operating System :: OS Independent
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Classifier: Programming Language :: Python
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Classifier: Programming Language :: Python :: 2
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Classifier: Programming Language :: Python :: 2.7
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Classifier: Programming Language :: Python :: 3
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Classifier: Programming Language :: Python :: 3.3
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Classifier: Programming Language :: Python :: 3.4
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Classifier: Programming Language :: Python :: 3.5
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Classifier: Programming Language :: Python :: 3.6
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Classifier: Topic :: Software Development :: Libraries :: Python Modules
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Classifier: Topic :: Software Development :: Quality Assurance
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McCabe complexity checker
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=========================
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Ned's script to check McCabe complexity.
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This module provides a plugin for ``flake8``, the Python code checker.
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Installation
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------------
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You can install, upgrade, uninstall ``mccabe`` with these commands::
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$ pip install mccabe
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$ pip install --upgrade mccabe
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$ pip uninstall mccabe
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Standalone script
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-----------------
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The complexity checker can be used directly::
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$ python -m mccabe --min 5 mccabe.py
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("185:1: 'PathGraphingAstVisitor.visitIf'", 5)
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("71:1: 'PathGraph.to_dot'", 5)
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("245:1: 'McCabeChecker.run'", 5)
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("283:1: 'main'", 7)
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("203:1: 'PathGraphingAstVisitor.visitTryExcept'", 5)
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("257:1: 'get_code_complexity'", 5)
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Plugin for Flake8
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-----------------
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When both ``flake8 2.0`` and ``mccabe`` are installed, the plugin is
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available in ``flake8``::
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$ flake8 --version
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2.0 (pep8: 1.4.2, pyflakes: 0.6.1, mccabe: 0.2)
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By default the plugin is disabled. Use the ``--max-complexity`` switch to
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enable it. It will emit a warning if the McCabe complexity of a function is
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higher that the value::
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$ flake8 --max-complexity 10 coolproject
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...
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coolproject/mod.py:1204:1: C901 'CoolFactory.prepare' is too complex (14)
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This feature is quite useful to detect over-complex code. According to McCabe,
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anything that goes beyond 10 is too complex.
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Links
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-----
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* Feedback and ideas: http://mail.python.org/mailman/listinfo/code-quality
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* Cyclomatic complexity: http://en.wikipedia.org/wiki/Cyclomatic_complexity.
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* Ned Batchelder's script:
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http://nedbatchelder.com/blog/200803/python_code_complexity_microtool.html
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Changes
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-------
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0.6.1 - 2017-01-26
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``````````````````
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* Fix signature for ``PathGraphingAstVisitor.default`` to match the signature
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for ``ASTVisitor``
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0.6.0 - 2017-01-23
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``````````````````
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* Add support for Python 3.6
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* Fix handling for missing statement types
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0.5.3 - 2016-12-14
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``````````````````
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* Report actual column number of violation instead of the start of the line
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0.5.2 - 2016-07-31
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``````````````````
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* When opening files ourselves, make sure we always name the file variable
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0.5.1 - 2016-07-28
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``````````````````
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* Set default maximum complexity to -1 on the class itself
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0.5.0 - 2016-05-30
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``````````````````
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* PyCon 2016 PDX release
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* Add support for Flake8 3.0
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0.4.0 - 2016-01-27
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``````````````````
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* Stop testing on Python 3.2
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* Add support for async/await keywords on Python 3.5 from PEP 0492
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0.3.1 - 2015-06-14
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``````````````````
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* Include ``test_mccabe.py`` in releases.
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* Always coerce the ``max_complexity`` value from Flake8's entry-point to an
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integer.
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0.3 - 2014-12-17
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````````````````
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* Computation was wrong: the mccabe complexity starts at 1, not 2.
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* The ``max-complexity`` value is now inclusive. E.g.: if the
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value is 10 and the reported complexity is 10, then it passes.
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* Add tests.
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0.2.1 - 2013-04-03
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``````````````````
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* Do not require ``setuptools`` in setup.py. It works around an issue
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with ``pip`` and Python 3.
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0.2 - 2013-02-22
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````````````````
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* Rename project to ``mccabe``.
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* Provide ``flake8.extension`` setuptools entry point.
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* Read ``max-complexity`` from the configuration file.
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* Rename argument ``min_complexity`` to ``threshold``.
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0.1 - 2013-02-11
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````````````````
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* First release
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