#26222: In migrating older project, after pip upgrade of Django to 1.9.2, 
Gunicorn
crashes on failure to find validation
-------------------------------+-------------------------------------------
     Reporter:                 |      Owner:  nobody
  JonathanHayward              |
         Type:  Uncategorized  |     Status:  new
    Component:  Uncategorized  |    Version:  1.9
     Severity:  Normal         |   Keywords:  upgrade, validation, gunicorn
 Triage Stage:  Unreviewed     |  Has patch:  0
Easy pickings:  0              |      UI/UX:  0
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 I have an old Django project that I haven't kept up, and now I'd like to
 make necessary changes to work with current versions of Django and related
 software. I'm not sure what to make of the current error; it appears to me
 that it doesn't have something under the django.core umbrella, but my
 Django 1.9.2 installation is up to date:

 [2016-02-14 17:23:10 +0000] [4605] [ERROR] Exception in worker process:
 Traceback (most recent call last):
   File "/usr/local/lib/python2.7/dist-packages/gunicorn/arbiter.py", line
 515, in spawn_worker
     worker.init_process()
   File "/usr/local/lib/python2.7/dist-packages/gunicorn/workers/base.py",
 line 122, in init_process
     self.load_wsgi()
   File "/usr/local/lib/python2.7/dist-packages/gunicorn/workers/base.py",
 line 130, in load_wsgi
     self.wsgi = self.app.wsgi()
   File "/usr/local/lib/python2.7/dist-packages/gunicorn/app/base.py", line
 67, in wsgi
     self.callable = self.load()
   File "/usr/local/lib/python2.7/dist-packages/gunicorn/app/djangoapp.py",
 line 141, in load
     mod = util.import_module("gunicorn.app.django_wsgi")
   File "/usr/lib/python2.7/importlib/__init__.py", line 37, in
 import_module
     __import__(name)
   File "/usr/local/lib/python2.7/dist-
 packages/gunicorn/app/django_wsgi.py", line 21, in
     from django.core.management.validation import get_validation_errors
 ImportError: No module named validation
 Traceback (most recent call last):
   File "/usr/local/lib/python2.7/dist-packages/gunicorn/arbiter.py", line
 515, in spawn_worker
     worker.init_process()
   File "/usr/local/lib/python2.7/dist-packages/gunicorn/workers/base.py",
 line 122, in init_process
     self.load_wsgi()
   File "/usr/local/lib/python2.7/dist-packages/gunicorn/workers/base.py",
 line 130, in load_wsgi
     self.wsgi = self.app.wsgi()
   File "/usr/local/lib/python2.7/dist-packages/gunicorn/app/base.py", line
 67, in wsgi
     self.callable = self.load()
   File "/usr/local/lib/python2.7/dist-packages/gunicorn/app/djangoapp.py",
 line 141, in load
     mod = util.import_module("gunicorn.app.django_wsgi")
   File "/usr/lib/python2.7/importlib/__init__.py", line 37, in
 import_module
     __import__(name)
   File "/usr/local/lib/python2.7/dist-
 packages/gunicorn/app/django_wsgi.py", line 21, in
     from django.core.management.validation import get_validation_errors
 ImportError: No module named validation
 [2016-02-14 17:23:10 +0000] [4605] [INFO] Worker exiting (pid: 4605)
 [2016-02-14 17:23:11 +0000] [4597] [INFO] Shutting down: Master
 [2016-02-14 17:23:11 +0000] [4597] [INFO] Reason: Worker failed to boot.
 root@localhost:~/unixytalk# pip install Django==1.9.2
 Requirement already satisfied (use --upgrade to upgrade): Django==1.9.2 in
 /usr/local/lib/python2.7/dist-packages

--
Ticket URL: <https://code.djangoproject.com/ticket/26222>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

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