Flake8 i18n plugin
Way too often using gettext in python results in one of the following errors:
_(f”{context_variable}”)
Not only gettext will not work here because fstring interpolation happens before function call, but using gettext tools for collecting translation keys results in:
File “/usr/lib/python3.6/site-packages/babel/messages/extract.py”,
line 480, in extract_python value = eval(code, {‘__builtins__’: {}}, {})
File “<string>”, line 2, in <module> NameError: name ‘context_variable’ is not defined
- Similar cases are
_(“%s” % value)
- and
_(“{}”.format(value))
which will not trigger a collection error, but will still result in an incorrect key name in gettext function call.
This flake8 extensions provides basic checks for the above cases.
Install
Install with pip:
$ pip install flake8-i18n
Configure
Add following into your .flake8 file
- i18nfuncs =
gettext ngettext myfunny_gettext _
- Otherwise the default function name list is
gettext ngettext _
Using string interpolation inside gettext will now result in one of the following:
I001 fstring is resolved before function call
I002 format is resolved before function call
I003 printf is resolved before function call
Requirements
Python 3.6, 3.7
flake8
License
GNU General Public License v2 (GPLv2)
Changelog
0.1.0 (2019-03-02)
Basic implementation
1 maintainer
Metadata
1 maintainer
Release files for flake8-i18n 0.1.0
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