Log Message:
py-Pyro: updated to 4.77

Pyro 4.77
- dropped support for Python 3.4 (which has reached end-of-life status). \ 
Supported Python versions are now 2.7, and 3.5 or newer.
  (the life cycle status of the Python versions can be seen here \ 
https://devguide.python.org/#status-of-python-branches)
- URIs now allow spaces in the location part. Useful for unix domain sockets.