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========
flake8
========
SYNOPSIS
========
.. code::
flake8 [options] [<path> <path> ...]
flake8 --help
DESCRIPTION
===========
``flake8`` is a command-line utility for enforcing style consistency across
Python projects. By default it includes lint checks provided by the PyFlakes
project, PEP-0008 inspired style checks provided by the PyCodeStyle project,
and McCabe complexity checking provided by the McCabe project. It will also
run third-party extensions if they are found and installed.
OPTIONS
=======
It is important to note that third-party extensions may add options which are
not represented here. To see all options available in your installation, run::
flake8 --help
All options available as of Flake8 3.1.0::
--version show program's version number and exit
-h, --help show this help message and exit
-v, --verbose Print more information about what is happening in
flake8. This option is repeatable and will increase
verbosity each time it is repeated.
-q, --quiet Report only file names, or nothing. This option is
repeatable.
--count Print total number of errors and warnings to standard
error and set the exit code to 1 if total is not
empty.
--diff Report changes only within line number ranges in the
unified diff provided on standard in by the user.
--exclude=patterns Comma-separated list of files or directories to
exclude. (Default:
.svn,CVS,.bzr,.hg,.git,__pycache__,.tox,.eggs,*.egg)
--filename=patterns Only check for filenames matching the patterns in this
comma-separated list. (Default: *.py)
--stdin-display-name=STDIN_DISPLAY_NAME
The name used when reporting errors from code passed
via stdin. This is useful for editors piping the file
contents to flake8. (Default: stdin)
--format=format Format errors according to the chosen formatter.
--hang-closing Hang closing bracket instead of matching indentation
of opening bracket's line.
--ignore=errors Comma-separated list of errors and warnings to ignore
(or skip). For example, ``--ignore=E4,E51,W234``.
(Default: E121,E123,E126,E226,E24,E704,W503,W504)
--max-line-length=n Maximum allowed line length for the entirety of this
run. (Default: 79)
--select=errors Comma-separated list of errors and warnings to enable.
For example, ``--select=E4,E51,W234``. (Default:
E,F,W,C90)
--disable-noqa Disable the effect of "# noqa". This will report
errors on lines with "# noqa" at the end.
--show-source Show the source generate each error or warning.
--statistics Count errors and warnings.
--enable-extensions=ENABLE_EXTENSIONS
Enable plugins and extensions that are otherwise
disabled by default
--exit-zero Exit with status code "0" even if there are errors.
--install-hook=INSTALL_HOOK
Install a hook that is run prior to a commit for the
supported version control system.
-j JOBS, --jobs=JOBS Number of subprocesses to use to run checks in
parallel. This is ignored on Windows. The default,
"auto", will auto-detect the number of processors
available to use. (Default: auto)
--output-file=OUTPUT_FILE
Redirect report to a file.
--tee Write to stdout and output-file.
--append-config=APPEND_CONFIG
Provide extra config files to parse in addition to the
files found by Flake8 by default. These files are the
last ones read and so they take the highest precedence
when multiple files provide the same option.
--config=CONFIG Path to the config file that will be the authoritative
config source. This will cause Flake8 to ignore all
other configuration files.
--isolated Ignore all configuration files.
--benchmark Print benchmark information about this run of Flake8
--bug-report Print information necessary when preparing a bug
report
--builtins=BUILTINS define more built-ins, comma separated
--doctests check syntax of the doctests
--include-in-doctest=INCLUDE_IN_DOCTEST
Run doctests only on these files
--exclude-from-doctest=EXCLUDE_FROM_DOCTEST
Skip these files when running doctests
--max-complexity=MAX_COMPLEXITY
McCabe complexity threshold
EXAMPLES
========
Simply running flake8 against the current directory::
flake8
flake8 .
Running flake8 against a specific path::
flake8 path/to/file.py
Ignoring violations from flake8::
flake8 --ignore E101
flake8 --ignore E1,E202
Only report certain violations::
flake8 --select E101
flake8 --select E2,E742
Analyzing only a diff::
git diff -U0 | flake8 --diff -
Generate information for a bug report::
flake8 --bug-report
SEE ALSO
========
Flake8 documentation: http://flake8.pycqa.org
Flake8 Options and Examples: http://flake8.pycqa.org/en/latest/user/options.html
PyCodeStyle documentation: http://pycodestyle.pycqa.org
PyFlakes: https://github.com/pycqa/pyflakes
McCabe: https://github.com/pycqa/mccabe
BUGS
====
Please report all bugs to https://gitlab.com/pycqa/flake8
|
