#25218: python_2_unicode_compatible causes infinite recursion when
super().__str__() is called
-------------------------------+--------------------
     Reporter:  jscn           |      Owner:  nobody
         Type:  Uncategorized  |     Status:  new
    Component:  Utilities      |    Version:  1.8
     Severity:  Normal         |   Keywords:
 Triage Stage:  Unreviewed     |  Has patch:  0
Easy pickings:  0              |      UI/UX:  0
-------------------------------+--------------------
 I have a class `A` which implements `__str__()` and is decorated with
 `@python_2_unicode_compatible`.

 I have sub-class of `A`, `B`, and `B` 's implementation of `__str__()`
 calls `super().__str__()`.

 When I call `b.__str__()`, I get the following error: `RuntimeError:
 maximum recursion depth exceeded while calling a Python object`.

 Partial traceback:

 {{{#!python
   File "/home/josh/Desktop/temp/djtest/local/lib/python2.7/site-
 packages/django/utils/encoding.py", line 42, in <lambda>
     klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
   File "recursion.py", line 27, in __str__
     super().__str__(),
   File "/home/josh/Desktop/temp/djtest/local/lib/python2.7/site-
 packages/django/utils/encoding.py", line 42, in <lambda>
     klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
   File "recursion.py", line 27, in __str__
     super().__str__(),
 }}}

 The docs
 
(https://docs.djangoproject.com/en/dev/ref/utils/#django.utils.encoding.python_2_unicode_compatible)
 imply that the decorator should be applied to *any* class implementing
 `__str__()`

--
Ticket URL: <https://code.djangoproject.com/ticket/25218>
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