Flake8 Extension to lint for quotes.

.. image:: https://travis-ci.org/zheller/flake8-quotes.svg?branch=master :target: https://travis-ci.org/zheller/flake8-quotes :alt: Build Status

Major update in 2.0.0

We automatically encourage avoiding escaping quotes as per PEP 8 <https://www.python.org/dev/peps/pep-0008/#string-quotes>_. To disable this, use --no-avoid-escape (can be used in configuration file via avoid-escape).

Deprecation notice in 0.3.0

To anticipate multiline support, we are renaming --quotes to --inline-quotes. Please adjust your configurations appropriately.

Usage

If you are using flake8 it's as easy as:

.. code:: shell

pip install flake8-quotes

Now you don't need to worry about people like @sectioneight constantly complaining that you are using double-quotes and not single-quotes.

Warnings

This package adds flake8 warnings with the prefix Q0. You might want to enable this warning inside your flake8 configuration file. Typically that will be .flake8 inside the root folder of your project.

.. code:: ini

select = Q0

The current set of warnings is:

==== ========================================================================= Code Description

Q000 Remove bad quotes Q001 Remove bad quotes from multiline string Q002 Remove bad quotes from docstring Q003 Change outer quotes to avoid escaping inner quotes ==== =========================================================================

Configuration

By default, we expect single quotes (') and look for unwanted double quotes ("). To expect double quotes (") and find unwanted single quotes ('), use the CLI option:

.. code:: shell

flake8 --inline-quotes '"'
# We also support "double" and "single"
# flake8 --inline-quotes 'double'
#
# We also support configuration for multiline quotes
# flake8 --inline-quotes '"' --multiline-quotes "'"
# We also support "'''"
# flake8 --inline-quotes '"' --multiline-quotes "'''"
#
# We also support docstring quotes similarly
# flake8 --inline-quotes '"' --docstring-quotes "'"
# flake8 --inline-quotes '"' --docstring-quotes "'''"

# We also support disabling escaping quotes
# flake8 --no-avoid-escape

or configuration option in tox.ini/setup.cfg.

.. code:: ini

[flake8]
inline-quotes = "
# We also support "double" and "single"
# inline-quotes = double
#
# We also support configuration for multiline quotes
# multiline-quotes = '
# We also support "'''"
# multiline-quotes = '''
#
# We also support docstring quotes similarly
# docstring-quotes = '
# docstring-quotes = '''
#
# We also support disabling escaping quotes
# avoid-escape = False

Caveats

We follow the PEP8 conventions <https://www.python.org/dev/peps/pep-0008/#string-quotes>_ to avoid backslashes in the string. So, no matter what configuration you are using (single or double quotes) these are always valid strings

.. code:: python

s = 'double "quotes" wrapped in singles are ignored'
s = "single 'quotes' wrapped in doubles are ignored"