A symptom of this error looks like the following.
Download error on http://pypi.python.org/simple/regex/: unknown url type: https -- Some packages may not be found! Couldn't find index page for 'regex' (maybe misspelled?)
A possible fix to this error is to install SSL development libraries and header files.
On Debian, Ubuntu or Linux Mint:
On CentOS, Fedora or RHEL:
Subscribe to Ask Xmodulo
Do you want to receive Linux related questions & answers published at Ask Xmodulo? Enter your email address below, and we will deliver our Linux Q&A straight to your email box, for free. Delivery powered by Google Feedburner.
Did you find this tutorial helpful? Then please be generous and support Xmodulo!