(Create a symlink pytest for py.test)
pytest [options] [file_or_dir] [file_or_dir] ...
Help:
For excessively paranoid client authentication.
Original: https://gist.github.com/mtigas/952344
openssl x509 -in server.crt -out server.der -outform DER
openssl x509 -in server.der -inform DER -out server.pem -outform PEM