#27609 closed Bug (invalid)
gettext_lazy cast to str/unicode errors under py 2.7 if performed after language activation.
Reported by: | Rafał Pitoń | Owned by: | nobody |
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Component: | Core (System checks) | Version: | 1.10 |
Severity: | Normal | Keywords: | |
Cc: | Triage Stage: | Unreviewed | |
Has patch: | no | Needs documentation: | no |
Needs tests: | no | Patch needs improvement: | no |
Easy pickings: | no | UI/UX: | no |
Description (last modified by )
I have model in my application that defined two fields: api_key, label. My cron task that fires periodically scraps the 3rd party API containing list of objects like {"id": "LAW", "name": "Prawo"} and turns those into instances of my model. This worked allright until we've got asked for ability to browse this data in our Admin.
So I've wen't to my models file that looked like this:
# -*- coding: utf-8 -*- from __future__ import unicode_literals from django.db import models from django.utils.translation import gettext_lazy as _ class Branch(ad): name=models.CharField(verbose_name=_("Nazwa"), max_length=255, db_index=True) api_id = models.CharField(verbose_name=_("ID API"), max_length=255) def __unicode__(self): return self.name
And added verbose name to it:
# -*- coding: utf-8 -*- from __future__ import unicode_literals from django.db import models from django.utils.translation import gettext_lazy as _ class Branch(ad): name=models.CharField(verbose_name=_("Nazwa"), max_length=255, db_index=True) api_id = models.CharField(verbose_name=_("ID API"), max_length=255) class Meta: verbose_name = _("Branża") verbose_name_plural = _("Branże") def __unicode__(self): return self.name
Now I can't get pass systems check, crashing with:
Performing system checks... Unhandled exception in thread started by <function wrapper at 0x1031e9b18> Traceback (most recent call last): File "/Users/rafapiton/projectdir/www/venv/lib/python2.7/site-packages/django/utils/autoreload.py", line 226, in wrapper fn(*args, **kwargs) File "/Users/rafapiton/projectdir/www/venv/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 121, in inner_run self.check(display_num_errors=True) File "/Users/rafapiton/projectdir/www/venv/lib/python2.7/site-packages/django/core/management/base.py", line 374, in check include_deployment_checks=include_deployment_checks, File "/Users/rafapiton/projectdir/www/venv/lib/python2.7/site-packages/django/core/management/base.py", line 361, in _run_checks return checks.run_checks(**kwargs) File "/Users/rafapiton/projectdir/www/venv/lib/python2.7/site-packages/django/core/checks/registry.py", line 81, in run_checks new_errors = check(app_configs=app_configs) File "/Users/rafapiton/projectdir/www/venv/lib/python2.7/site-packages/django/contrib/auth/checks.py", line 112, in check_models_permissions builtin_permissions = dict(_get_builtin_permissions(opts)) File "/Users/rafapiton/projectdir/www/venv/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py", line 35, in _get_builtin_permissions 'Can %s %s' % (action, opts.verbose_name_raw) File "/Users/rafapiton/projectdir/www/venv/lib/python2.7/site-packages/django/db/models/options.py", line 341, in verbose_name_raw return force_text(self.verbose_name) File "/Users/rafapiton/projectdir/www/venv/lib/python2.7/site-packages/django/utils/encoding.py", line 80, in force_text s = six.text_type(bytes(s), encoding, errors) File "/Users/rafapiton/projectdir/www/venv/lib/python2.7/site-packages/django/utils/functional.py", line 119, in __bytes_cast return bytes(func(*self.__args, **self.__kw)) UnicodeEncodeError: 'ascii' codec can't encode character u'\u017c' in position 4: ordinal not in range(128)
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Upon furthrer look into the issue, it seems that Django uses different strategies on casting variables to strings depending on place. For exaple, gettext_lazy("Branża") works swimmingly when assigned to form's field's verbose_name, but when its used in callable that returns list of field's choices, it raises. Similiarly I've created view like this:
# -*- coding: utf-8 -*- from __future__ import unicode_literals from django.utils.translation import gettext_lazy def index(request): print gettext_lazy('Branża')
And it raises too, which points towards gettext_lazy("") changing behaviour after language has been activated.
Change History (3)
comment:1 by , 8 years ago
Description: | modified (diff) |
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Summary: | UnicodeEncodeError in check_models_permissions for added unicode verbose name to models → gettext_lazy cast to str/unicode errors under py 2.7 if performed after language activation. |
follow-up: 3 comment:2 by , 8 years ago
comment:3 by , 8 years ago
Resolution: | → invalid |
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Status: | new → closed |
Replying to Claude Paroz:
Do you have a reason to use
gettext_lazy
instead ofugettext_lazy
?
Gaah, I'm blind today, thank you!
Do you have a reason to use
gettext_lazy
instead ofugettext_lazy
?