[ python-Bugs-864944 ] doctest chokes on recursive members

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Bugs item #864944, was opened at 2003-12-23 13:51
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Category: Python Library
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Gintautas Miliauskas (gintautasm)
Assigned to: Nobody/Anonymous (nobody)
Summary: doctest chokes on recursive members

Initial Comment:
doctests recurse infinitely when they find a recursive
member in a class. A simple example:

--b0rk.py--
class Crash:
    pass

Crash.c = Crash
-----

--test.py--
import doctest
import b0rk

doctest.testmod(b0rk)
-----

--output of test.py--
Traceback (most recent call last):
  File "test.py", line 5, in ?
    doctest.testmod(b0rk)
  File "/usr/lib/python2.3/doctest.py", line 1148, in
testmod
    f, t = tester.rundict(m.__dict__, name, m)
  File "/usr/lib/python2.3/doctest.py", line 908, in
rundict
    f2, t2 = self.__runone(value, name + "." + thisname)
  File "/usr/lib/python2.3/doctest.py", line 1069, in
__runone
    return self.rundoc(target, name)
  File "/usr/lib/python2.3/doctest.py", line 828, in rundoc
    f2, t2 = self.run__test__(d, name)
<.............................>
  File "/usr/lib/python2.3/doctest.py", line 935, in
run__test__
    f, t = self.rundoc(v, thisname)
  File "/usr/lib/python2.3/doctest.py", line 790, in rundoc
    for tag, kind, homecls, value in
_classify_class_attrs(object):
  File "/usr/lib/python2.3/inspect.py", line 201, in
classify_class_attrs
    mro = getmro(cls)
RuntimeError: maximum recursion depth exceeded
-----

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