Checks for old string formatting.
Project description
Flake8 PEP 3101 plugin
Python has three string formatting options:
the old percent operator
the .format() string method
f-strings (only since python 3.6+)
Although f-strings are more ergonomic, there a certain scenarios where the .format() method is still the only viable option.
See pyformat website for examples of the percent operator vs the format() method.
For a more format definition see the PEP 3101.
This plugin is based on a python checker that was in plone.recipe.codeanalysis.
Install
Install with pip:
$ pip install flake8-pep3101
Requirements
Python 3.7, 3.8, 3.9, 3.10 and pypy3
flake8
Extras
If you want to check whether your new style formatting are correctly defined, check flake8-string-format plugin.
License
GPL 2.0
Changelog
2.0.0 (2022-10-08)
Update dependencies. [gforcada]
Test the code on GitHub actions. [gforcada]
Drop python 2.7 and only support python 3.7+. [gforcada]
Use linters and formatters to keep code sane and beautiful. [gforcada]
Simplify the amount of code to write a test. [gforcada]
1.3.0 (2019-12-15)
Warn about “string %i” % 33 which was previously ignored. Reported by @unformatt. [gforcada]
1.2.1 (2018-04-05)
Fix text on the error message. [icemac]
1.2 (2017-12-12)
Handle when there are numbers in either side of the modulo operator. [gforcada]
1.1 (2017-05-12)
Handle variable formatting (i.e. my_string_variable % ('one', 'two', )). [gforcada]
Test againsta Python 3.6. [gforcada]
Release universal wheels as well. [gforcada]
1.0 (2016-11-27)
Remove tox and use plain travis matrix to test. [gforcada]
Test on python 2.7, python 3.5, pypy and pypy3. [gforcada]
Require flake8 3.0. [gforcada]
Use ast to analyze the code. The regular expression used so far was mostly a hit or miss, with each corner case making it even more difficult to read. The new checker with ast is simple, elegant and so much easy to read. [gforcada]
0.6 (2016-10-29)
Handle edge case when a single or double quoted string has another pair of quotes inside (‘lala “lu” la’) with some % symbol inside as well. [gforcada]
0.5 (2016-10-26)
Add all possible string formatters. [gforcada]
Fix extension to work with flake8 > 3.0. [gforcada]
Fix crash when the % symbol was the last character of a line. [gforcada]
0.4 (2016-07-03)
Rename pep8 to pycodestyle. [alefteris]
Add support for python 3.5. [alefteris]
Add flake8 pypi classifier. [alefteris]
Drop python 3.3 and 3.4 support (only testing it probably works just fine). [gforcada]
Fix travis and coveralls to work properly with python 3.5. [gforcada]
0.3 (2016-03-05)
Allow stdin processing, this way text editor can pass input to flake8. [mjacksonw]
0.2 (2015-09-16)
0.1 was a brown bag release. [gforcada]
0.1 (2015-09-16)
Initial release [gforcada]
Create the flake8 plugin per se. [gforcada]
Project details
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