3.8.0.rst

3.8.0 -- 2020-05-11

You can view the 3.8.0 milestone on GitHub for more details.

Bugs Fixed

• Fix logical checks which report positions out of bounds (See also :issue:`987`, :issue:`723`)
• Fix --exclude=.* accidentally matching . and .. (See also :issue:`441`, :issue:`360`)

Deprecations

• Add deprecation message for vcs hooks (See also :issue:`985`, :issue:`296`)

3.8.0a2 -- 2020-04-24

You can view the 3.8.0 milestone on GitHub for more details.

Bugs Fixed

• Fix type="str" optparse options (See also :issue:`984`)

3.8.0a1 -- 2020-04-24

You can view the 3.8.0 milestone on GitHub for more details.

New Dependency Information

• Remove dependency on entrypoints and add dependency on importlib-metadata (only for python<3.8) (See also :issue:`1297`, :issue:`297`)
• Pyflakes has been updated to >= 2.2.0, < 2.3.0 (See also :issue:`982`)
• pycodestyle has been updated to >= 2.6.0a1, < 2.7.0 (See also :issue:`983`)

Features

• Add --extend-exclude option to add to --exclude without overwriting (See also :issue:`1211`, :issue:`1091`)
• Move argument parsing from optparse to argparse (See also :issue:`939`
• Group plugin options in --help (See also :issue:`1219`, :issue:`294`)
• Remove parsing of verbose from configuration files as it was not consistently applied (See also :issue:`1245`, :issue:`245`)
• Remove parsing of output_file from configuration files as it was not consistently applied (See also :issue:`1246`)
• Resolve configuration files relative to cwd instead of common prefix of passed filenames. You may need to change flake8 subproject to cd subproject && flake8 . (See also :issue:`952`)
• Officially support python3.8 (See also :issue:`963`)
• --disable-noqa now also disables # flake8: noqa (See also :issue:`1296`, :issue:`318`)
• Ensure that a missing file produces a E902 error (See also :issue:`1262`, :issue:`328`)
• # noqa comments now apply to all of the lines in an explicit \ continuation or in a line continued by a multi-line string (See also :issue:`1266`, :issue:`621`)

Bugs Fixed

• Fix --exclude=./t.py to only match t.py at the top level (See also :issue:`1208`, :issue:`628`)
• Fix --show-source when a file is indented with tabs (See also :issue:`1218`, :issue:`719`)
• Fix crash when --max-line-length is given a non-integer (See also :issue:`939`, :issue:`704`)
• Prevent flip-flopping of indent_char causing extra E101 errors (See also :issue:`949`, pycodestyle#886)
• Only enable multiprocessing when the method is fork fixing issues on macos with python3.8+ (See also :issue:`955`, :issue:`315`) (note: this fix also landed in 3.7.9)
• noqa is now only handled by flake8 fixing specific-noqa. Plugins requesting this parameter will always receive False (See also :issue:`1214`, :issue:`1104`)
• Fix duplicate loading of plugins when invoked via python -m flake8 (See also :issue:`1297`)
• Fix early exit when --exit-zero and --diff are provided and the diff is empty (See also :issue:`970`)
• Consistently split lines when \f is present when reading from stdin (See also :issue:`976`, :issue:`202`)

Deprecations

• python setup.py flake8 (setuptools integration) is now deprecated and will be removed in a future version (See also :issue:`935`, :issue:`1098`)
• type='string' (optparse) types are deprecated, use type=callable (argparse) instead. Support for type='string' will be removed in a future version (See also :issue:`939`)
• %default in plugin option help text is deprecated, use %(default)s instead. Support for %default will be removed in a future version (See also :issue:`939`)
• optparse-style action='callback' setting for options is deprecated, use argparse action classes instead. This will be removed in a future version (See also :issue:`939`)