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63 lines
1.5 KiB
Python
63 lines
1.5 KiB
Python
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"""Monkey-patching for pep8 and pycodestyle."""
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try:
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import pep8
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except ImportError:
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pep8 = None
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try:
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import pycodestyle
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except ImportError:
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pycodestyle = None
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from flake8_polyfill import version
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__all__ = ('monkey_patch',)
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modules = {
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'pep8': [pep8],
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'pycodestyle': [pycodestyle],
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'all': [pep8, pycodestyle],
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}
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def monkey_patch(which):
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"""Monkey-patch the specified module with the appropriate stdin.
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On Flake8 2.5 and lower, Flake8 would would monkey-patch
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``pep8.stdin_get_value`` for everyone. This avoided problems where
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stdin might be exhausted.
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On Flake8 2.6, Flake8 stopped patching ``pep8`` and started
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monkey-patching ``pycodestyle.stdin_get_value``.
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On Flake8 3.x, Flake8 has no need to monkey patch either ``pep8`` or
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``pycodestyle``.
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This function accepts three parameters:
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- pep8
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- pycodestyle
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- all
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"all" is a special value that will monkey-patch both "pep8" and
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"pycodestyle".
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:param str which:
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The name of the module to patch.
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:returns:
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Nothing.
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:rtype:
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NoneType
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"""
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if (2, 0) <= version.version_info < (3, 0):
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from flake8.engine import pep8 as _pep8
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stdin_get_value = _pep8.stdin_get_value
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elif (3, 0) <= version.version_info < (4, 0):
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from flake8 import utils
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stdin_get_value = utils.stdin_get_value
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for module in modules[which]:
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if module is None:
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continue
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module.stdin_get_value = stdin_get_value
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