Revert "Merge pull request #20 from ccpost/fix/pip-install"
Revert "Merge pull request #20 from ccpost/fix/pip-install"

This reverts commit 9277d453f591048cda000ac7300b0f6acd4790fe, reversing
changes made to f793225af16f675c8ff46397a5a5b3cea67406c4.

LudovicRousseau/pyscard,LudovicRousseau/pyscard,LudovicRousseau/pyscard