[Django] #11081: Page rendering fails after upgrading to r10703

[Django-3]

#11081: Page rendering fails after upgrading to r10703
----------------------------------+-----------------------------------------
 Reporter:  awatts                |       Owner:  nobody    
   Status:  new                   |   Milestone:            
Component:  Core framework        |     Version:  1.0      
 Keywords:  getdefaultlocale mac  |       Stage:  Unreviewed
Has_patch:  0                     |  
----------------------------------+-----------------------------------------
 I did and svn update the other day and the changes made in
 source:/django/trunk/django/utils/encoding.py in changeset:10703 to fix
 ticket:10335 seems to be causing all template renderings to fail for me
 with a traceback like the following:

 {{{
 #!python
 Traceback (most recent call last):
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/core/servers/basehttp.py", line 278, in run
     self.result = application(self.environ, self.start_response)
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/core/servers/basehttp.py", line 636, in __call__
     return self.application(environ, start_response)
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/core/handlers/wsgi.py", line 241, in __call__
     response = self.get_response(request)
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/core/handlers/base.py", line 134, in get_response
     return self.handle_uncaught_exception(request, resolver, exc_info)
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/core/handlers/base.py", line 154, in
 handle_uncaught_exception
     return debug.technical_500_response(request, *exc_info)
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/views/debug.py", line 40, in technical_500_response
     html = reporter.get_traceback_html()
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/views/debug.py", line 114, in get_traceback_html
     return t.render(c)
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/template/__init__.py", line 178, in render
     return self.nodelist.render(context)
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/template/__init__.py", line 779, in render
     bits.append(self.render_node(node, context))
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/template/debug.py", line 81, in render_node
     raise wrapped
 TemplateSyntaxError: Caught an exception while rendering: cannot import
 name DEFAULT_LOCALE_ENCODING
 }}}

 I'm running MacOS X 10.5.6 with Python 2.6 and using the SVN version of
 Django.

--
Ticket URL: <http://code.djangoproject.com/ticket/11081>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#11081: Page rendering fails after upgrading to r10703
-------------------------------------+--------------------------------------
          Reporter:  awatts          |         Owner:  nobody              
            Status:  new             |     Milestone:                      
         Component:  Core framework  |       Version:  1.0                
        Resolution:                  |      Keywords:  getdefaultlocale mac
             Stage:  Unreviewed      |     Has_patch:  0                  
        Needs_docs:  0               |   Needs_tests:  0                  
Needs_better_patch:  0               |  
-------------------------------------+--------------------------------------
Changes (by awatts):

  * needs_better_patch:  => 0
  * needs_tests:  => 0
  * needs_docs:  => 0

Comment:

 I just noticed that after that traceback there's a 2nd one:
 {{{
 #!python
 Original Traceback (most recent call last):
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/template/debug.py", line 71, in render_node
     result = node.render(context)
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/template/debug.py", line 87, in render
     output = force_unicode(self.filter_expression.resolve(context))
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/template/__init__.py", line 572, in resolve
     new_obj = func(obj, *arg_vals)
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/template/defaultfilters.py", line 681, in date
     from django.utils.dateformat import format
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/utils/dateformat.py", line 18, in <module>
     from django.utils.tzinfo import LocalTimezone
   File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/django/utils/tzinfo.py", line 5, in <module>
     from django.utils.encoding import smart_unicode, smart_str,
 DEFAULT_LOCALE_ENCODING
 ImportError: cannot import name DEFAULT_LOCALE_ENCODING
 }}}

--
Ticket URL: <http://code.djangoproject.com/ticket/11081#comment:1>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#11081: Page rendering fails after upgrading to r10703
-------------------------------------+--------------------------------------
          Reporter:  awatts          |         Owner:  nobody              
            Status:  new             |     Milestone:                      
         Component:  Core framework  |       Version:  SVN                
        Resolution:                  |      Keywords:  getdefaultlocale mac
             Stage:  Unreviewed      |     Has_patch:  0                  
        Needs_docs:  0               |   Needs_tests:  0                  
Needs_better_patch:  0               |  
-------------------------------------+--------------------------------------
Changes (by awatts):

  * version:  1.0 => SVN

--
Ticket URL: <http://code.djangoproject.com/ticket/11081#comment:2>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#11081: Page rendering fails after upgrading to r10703
-------------------------------------+--------------------------------------
          Reporter:  awatts          |         Owner:  nobody              
            Status:  new             |     Milestone:                      
         Component:  Core framework  |       Version:  SVN                
        Resolution:                  |      Keywords:  getdefaultlocale mac
             Stage:  Unreviewed      |     Has_patch:  0                  
        Needs_docs:  0               |   Needs_tests:  0                  
Needs_better_patch:  0               |  
-------------------------------------+--------------------------------------
Comment (by kmtracey):

 I saw this exception when I did an `svn up` of the code in use by a
 running dev server.  Restarting the dev server fixed it.  I assume you
 have tried restarting the server?  And verified that the code you are
 running has the definition of `DEFAULT_LOCALE_ENCODING` in the
 django/utils/encoding.py?

--
Ticket URL: <http://code.djangoproject.com/ticket/11081#comment:3>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#11081: Page rendering fails after upgrading to r10703
-------------------------------------+--------------------------------------
          Reporter:  awatts          |         Owner:  nobody              
            Status:  closed          |     Milestone:                      
         Component:  Core framework  |       Version:  SVN                
        Resolution:  worksforme      |      Keywords:  getdefaultlocale mac
             Stage:  Unreviewed      |     Has_patch:  0                  
        Needs_docs:  0               |   Needs_tests:  0                  
Needs_better_patch:  0               |  
-------------------------------------+--------------------------------------
Changes (by Alex):

  * status:  new => closed
  * resolution:  => worksforme

Comment:

 No new information after 2 months, I'm going to close as worksforme.

--
Ticket URL: <http://code.djangoproject.com/ticket/11081#comment:4>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#11081: Page rendering fails after upgrading to r10703
-------------------------------------+--------------------------------------
          Reporter:  awatts          |         Owner:  nobody              
            Status:  closed          |     Milestone:                      
         Component:  Core framework  |       Version:  SVN                
        Resolution:  worksforme      |      Keywords:  getdefaultlocale mac
             Stage:  Unreviewed      |     Has_patch:  0                  
        Needs_docs:  0               |   Needs_tests:  0                  
Needs_better_patch:  0               |  
-------------------------------------+--------------------------------------
Comment (by yopi):

 Had the same issue when upgrading to 11724. The error is explicit tho,
 DEFAULT_LOCALE_ENCODING has to be set to UTF-8. I use mod_fastcgi with a
 socket so I could use:
 /usr/bin/env - \
   DEFAULT_LOCALE_ENCODING="UTF-8" \
   PYTHONPATH="../python:.." \
   ./manage.py runfcgi socket=$SOCKET pidfile=$PIDFILE maxrequests=1

 However, Django is making an assumption here about DEFAULT_LOCALE_ENCODING
 that wasn't made before. This is an unfortunate change that deserves a
 fix. There are no doubts that lots of user are uselessly reunning into
 that error.

--
Ticket URL: <http://code.djangoproject.com/ticket/11081#comment:5>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#11081: Page rendering fails after upgrading to r10703
-------------------------------------+--------------------------------------
          Reporter:  awatts          |         Owner:  nobody              
            Status:  closed          |     Milestone:                      
         Component:  Core framework  |       Version:  SVN                
        Resolution:  worksforme      |      Keywords:  getdefaultlocale mac
             Stage:  Unreviewed      |     Has_patch:  0                  
        Needs_docs:  0               |   Needs_tests:  0                  
Needs_better_patch:  0               |  
-------------------------------------+--------------------------------------
Comment (by kmtracey):

 Replying to [comment:5 yopi]:
 I don't  understand what you are trying to say.  DEFAULT_LOCALE_ENCODING
 is calculated in django/utils/encoding.py:

 http://code.djangoproject.com/browser/django/tags/releases/1.1.1/django/utils/encoding.py#L142

 The original problem reported here was that the name
 DEFAULT_LOCALE_ENCODING could not be imported from there, for reasons that
 were never tracked down due to lack of information from anyone who could
 consistently recreate the problem (I saw it once, but it went away after a
 server restart).  If you can consistently recreate this problem:

 {{{
 #!python
     from django.utils.encoding import smart_unicode, smart_str,
 DEFAULT_LOCALE_ENCODING
 ImportError: cannot import name DEFAULT_LOCALE_ENCODING
 }}}

 then some information on how that happens would be helpful, since I don't
 see how it can happen given the way it is calculated.

 If you do not like what is getting calculated for DEFAULT_LOCALE_ENCODING,
 then that's a different issue and deserves its own ticket.  The changeset
 that introduced it fixed a real problem on some systems, where Python
 raised an exception attempting to get the encoding for the default locale.
 If it is causing another problem in other configurations, then we need
 more specific information about what that problem is in order to fix it.
 "Django is making an assumption here about DEFAULT_LOCALE_ENCODING that
 wasn't made before" is too vague to be helpful -- what assumption?  The
 current code tries its best to determine a good value without ever raising
 an exception -- how would you propose to change that to fix whatever
 problem you are seeing, and still fix the problem fixed by r10703, which
 introduced DEFAULT_LOCALE_ENCODING?

--
Ticket URL: <http://code.djangoproject.com/ticket/11081#comment:6>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#11081: Page rendering fails after upgrading to r10703
-------------------------------------+--------------------------------------
          Reporter:  awatts          |         Owner:  nobody              
            Status:  closed          |     Milestone:                      
         Component:  Core framework  |       Version:  SVN                
        Resolution:  worksforme      |      Keywords:  getdefaultlocale mac
             Stage:  Unreviewed      |     Has_patch:  0                  
        Needs_docs:  0               |   Needs_tests:  0                  
Needs_better_patch:  0               |  
-------------------------------------+--------------------------------------
Comment (by mertnuhoglu):

 Replying to [comment:6 kmtracey]:

 django 1.1.1 final version which is available for download in the website
 doesn't contain the lines that calculate DEFAULT_LOCALE_ENCODING.

--
Ticket URL: <http://code.djangoproject.com/ticket/11081#comment:7>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

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[Django-3]

#11081: Page rendering fails after upgrading to r10703
-------------------------------------+--------------------------------------
          Reporter:  awatts          |         Owner:  nobody              
            Status:  closed          |     Milestone:                      
         Component:  Core framework  |       Version:  SVN                
        Resolution:  worksforme      |      Keywords:  getdefaultlocale mac
             Stage:  Unreviewed      |     Has_patch:  0                  
        Needs_docs:  0               |   Needs_tests:  0                  
Needs_better_patch:  0               |  
-------------------------------------+--------------------------------------
Comment (by anonymous):

 Replying to [comment:7 mertnuhoglu]:
 > Replying to [comment:6 kmtracey]:
 >
 > django 1.1.1 final version which is available for download in the
 website doesn't contain the lines that calculate DEFAULT_LOCALE_ENCODING.

 Yes, it does, really.  It contains exactly the code you can see on the
 website here:

 http://code.djangoproject.com/browser/django/tags/releases/1.1.1/django/utils/encoding.py#L142

 I just downloaded a fresh copy, unpacked, and checked the file.  The code
 is there in the release file.

--
Ticket URL: <http://code.djangoproject.com/ticket/11081#comment:8>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

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