Flake8 meet isort

Use isort_ to check if the imports on your python files are sorted the way you expect.

Add an .isort.cfg to define how you want your imports sorted and run flake8 as you usually do.

See isort documentation_ for .isort.cfg available options.

Install

Install with pip::

$ pip install flake8-isort

Install with conda::

$ conda install -c conda-forge flake8-isort

Configuration

If using the select option from flake8_ be sure to enable the I category as well, see below for the specific error codes reported by flake8-isort.

See flake8 --help for available flake8-isort options.

Error codes

+------------+-----------------------------------------------------------+
| Error code | Description |
+============+===========================================================+
| I001 | isort found an import in the wrong position |
+------------+-----------------------------------------------------------+
| I002 | no configuration found (.isort.cfg or [isort] in configs) |
+------------+-----------------------------------------------------------+
| I003 | isort expected 1 blank line in imports, found 0 |
+------------+-----------------------------------------------------------+
| I004 | isort found an unexpected blank line in imports |
+------------+-----------------------------------------------------------+
| I005 | isort found an unexpected missing import |
+------------+-----------------------------------------------------------+

Requirements

Python 3.9, 3.10, 3.11, 3.12, 3.13 and pypy3
flake8
isort

Relation to flake8-import-order

As an alternative to this flake8 plugin, there's flake8-import-order_ that could be worth checking out. In contrast to this plugin that defers all logic to isort, the flake8-import-order comes bundled with it's own logic.

flake8-import-order comes with a few predefined set of styles meanwhile this plugin can be customized a bit more. But the biggest difference could lie in that flake8-isort actually has the corresponding sorting engine isort that can sort the import orders of your existing python files. Meanwhile flake8-import-order has no such corresponding tool, hence big existing projects who want to adopt either would get a more automized experience choosing flake8-isort.

License

GPL 2.0

.. _isort: https://pypi.python.org/pypi/isort
.. _isort documentation: https://pycqa.github.io/isort/docs/configuration/options.html
.. _flake8-import-order: https://pypi.python.org/pypi/flake8-import-order
.. _option from flake8: http://flake8.pycqa.org/en/latest/user/options.html#cmdoption-flake8-select

Dependencies of flake8-isort (3).
Dependency	Optional
flake8	false
isort	false
pytest	true

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flake8-isort

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