[MacPorts] #44954: poppler, gobject-introspection: AttributeError: 'module' object has no attribute 'mkstemp'

[MacPorts]

#44954: poppler, gobject-introspection: AttributeError: 'module' object has no
attribute 'mkstemp'
-------------------------------+----------------------
  Reporter:  john.m.harrold@…  |      Owner:  devans@…
      Type:  defect            |     Status:  assigned
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:
Resolution:                    |   Keywords:
      Port:  poppler           |
-------------------------------+----------------------

Comment (by ww.galen@…):

 I might have a resolution.

 I was getting this error when attempting to upgrade Python 2.7, during
 staging. Consequently, the top of the stack in my error message was
 different than in John's, but the stack from the `import tempfile` on was
 basically the same (the only difference was that modules were located in
 the build directory rather than the system directory). I could also get
 the same error by starting python 2.7 and trying to import tempfile:

 {{{
 Python 2.7.8 (default, Jul 16 2014, 01:06:49)
 [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
 Type "help", "copyright", "credits" or "license" for more information.
 >>> import tempfile
 Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/tempfile.py",
 line 35, in <module>
     from random import Random as _Random
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/random.py",
 line 50, in <module>
     from hashlib import sha512 as _sha512
   File "build/bdist.macosx-10.6-x86_64/egg/hashlib.py", line 105, in
 <module>

   File "build/bdist.macosx-10.6-x86_64/egg/_hashlib.py", line 7, in
 <module>
   File "build/bdist.macosx-10.6-x86_64/egg/_hashlib.py", line 4, in
 __bootstrap__
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
 /site-packages/pkg_resources.py", line 937, in resource_filename
     self, resource_name
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
 /site-packages/pkg_resources.py", line 1632, in get_resource_filename
     self._extract_resource(manager, self._eager_to_zip(name))
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
 /site-packages/pkg_resources.py", line 1668, in _extract_resource
     outf, tmpnam = _mkstemp(".$extract", dir=os.path.dirname(real_path))
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
 /site-packages/pkg_resources.py", line 2852, in _mkstemp
     return tempfile.mkstemp(*args,**kw)
 AttributeError: 'module' object has no attribute 'mkstemp'
 }}}

 (Sure, 10.6 isn't officially supported by MacPorts, but my Mac won't
 officially support anything newer than 10.7.)

 It's a cyclic dependency: tempfile loads random, which loads hashlib,
 which loads pkg_resources, which calls `tempfile.mkstemp`, which isn't
 defined yet. The funny thing is the path for hashlib, which isn't the same
 as for the other modules, despite there being a hashlib.py in the same
 directory.

 What happened (as you might guess from the path) was that I had an egg for
 hashlib in the "site-packages" sub-directory seen in the stack above. I:
 * removed the reference to the hashlib egg file in "site-packages/easy-
 install.pth" (you also may be able to run `easy-install -m hashlib`, but
 for me affected a different python installation), then
 * renamed the egg (you can probably delete the egg, but renaming is
 safer).
 After that, python 2.7 staged successfully. I could also import tempfile
 and hashlib, so I deleted the egg.

-- 
Ticket URL: <https://trac.macports.org/ticket/44954#comment:11>
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