Description of problem:
pygit2 is not importable on F23

Version-Release number of selected component (if applicable):
python-pygit2-0.23.0-0.1.fc23.x86_64
python3-pygit2-0.23.0-0.1.fc23.x86_64


How reproducible:
On freshly installed F23 as well as on an updated one form F20 -> F21 -> F22 -> F23

Steps to Reproduce:
0. install python{,3}-pygit2
1. run python or python3
2. import pygit2
3. observe

Actual results:
>>> import pygit2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python2.7/site-packages/pygit2/__init__.py", line 35, in <module>
    from .blame import Blame, BlameHunk
  File "/usr/lib64/python2.7/site-packages/pygit2/blame.py", line 32, in <module>
    from .errors import check_error
  File "/usr/lib64/python2.7/site-packages/pygit2/errors.py", line 29, in <module>
    from .ffi import ffi, C
  File "/usr/lib64/python2.7/site-packages/pygit2/ffi.py", line 35, in <module>
    ffi, C = get_ffi()
  File "/usr/lib64/python2.7/site-packages/pygit2/_utils.py", line 107, in get_ffi
    include_dirs=[libgit2_include], library_dirs=[libgit2_lib])
  File "/usr/lib64/python2.7/site-packages/cffi/api.py", line 424, in verify
    lib = self.verifier.load_library()
  File "/usr/lib64/python2.7/site-packages/cffi/verifier.py", line 109, in load_library
    self._write_source()
  File "/usr/lib64/python2.7/site-packages/cffi/verifier.py", line 198, in _write_source
    with open(self.sourcefilename, "w") as fp:
IOError: [Errno 2] No such file or directory: '/usr/lib64/python2.7/site-packages/pygit2/__pycache__/pygit2_cffi_256143ebxe8494016.c'


>>> import pygit2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python3.4/site-packages/pygit2/__init__.py", line 35, in <module>
    from .blame import Blame, BlameHunk
  File "/usr/lib64/python3.4/site-packages/pygit2/blame.py", line 32, in <module>
    from .errors import check_error
  File "/usr/lib64/python3.4/site-packages/pygit2/errors.py", line 29, in <module>
    from .ffi import ffi, C
  File "/usr/lib64/python3.4/site-packages/pygit2/ffi.py", line 35, in <module>
    ffi, C = get_ffi()
  File "/usr/lib64/python3.4/site-packages/pygit2/_utils.py", line 107, in get_ffi
    include_dirs=[libgit2_include], library_dirs=[libgit2_lib])
  File "/usr/lib64/python3.4/site-packages/cffi/api.py", line 424, in verify
    lib = self.verifier.load_library()
  File "/usr/lib64/python3.4/site-packages/cffi/verifier.py", line 109, in load_library
    self._write_source()
  File "/usr/lib64/python3.4/site-packages/cffi/verifier.py", line 198, in _write_source
    with open(self.sourcefilename, "w") as fp:
PermissionError: [Errno 13] Permission denied: '/usr/lib64/python3.4/site-packages/pygit2/__pycache__/pygit2_cffi_6bc76ceexe8494016.c'

Expected results:
Should import and work as expected.

Additional info:
I was running pygit2 from repository of https://copr.fedorainfracloud.org/coprs/bochecha/ on F20 and it worked. Than I updated to F23, teh rpo is gone, I'm using pygit2 from Fedora and it is broken. I've tried on other machine with the same result.