Ned Deily added the comment: Try installing cffi from source rather than using the pre-compiled wheel:
python -m pip uninstall cffi python -m pip install -v --no-use-wheel --user cffi If that works, there could be an incompatibility between the Python 2.7.12 you are using and the C extensions in the wheel. What platform are you on and what is the source of the Python 2.7? ---------- nosy: +ned.deily _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27542> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com