I've tried to get up an running with NLTK through installer script from pypi modules and it throws the following errors on attempted install under python 2.7.

ProtocolError: <ProtocolError for pypi.python.org/pypi: 403 [[[!!! BREAKING CHANGE !!!]]] Support for clients that do not support Server Name Indication is temporarily disabled and will be permanently deprecated soon. See https://status.python.org/incidents/hzmjhqsdjqgb and https://github.com/pypa/pypi-support/issues/978 [[[!!! END BREAKING CHANGE !!!]]]>

I tried using pip install from stash but it failed while installing the regex module as it contains C code that required compiling.

Any work around would be greatly appreciated.