#26462: UnicodeEncodeError when warning about too long caching keys on Python 2
-------------------------------+--------------------
Reporter: suligap | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 1.9
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 1
Easy pickings: 0 | UI/UX: 0
-------------------------------+--------------------
On Python 2 `warnings.warn()` expects a `message` that can be coerced to a
`str`.
{{{
Python 2.7.10 (default, Oct 14 2015, 16:09:02)
[GCC 5.2.1 20151010] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import warnings
>>> warnings.warn(u'清')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/warnings.py", line 33, in _show_warning
file.write(formatwarning(message, category, filename, lineno, line))
File "/usr/lib/python2.7/warnings.py", line 42, in formatwarning
s = "%s:%s: %s: %s\n" % (filename, lineno, category.__name__,
message)
UnicodeEncodeError: 'ascii' codec can't encode character u'\u6e05' in
position 0: ordinal not in range(128)
}}}
`BaseCache.validate_key()`
[https://github.com/django/django/blob/d356bb653f4d90ae9809e5a051791ded39010c38/django/core/cache/backends/base.py#L237-L238
fails to create a proper `message`] by using `"%s"` to interpolate the key
into the `message` instead of using `"%r"`.
--
Ticket URL: <https://code.djangoproject.com/ticket/26462>
Django <https://code.djangoproject.com/>
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