pip connection failure: cannot fetch index base URL http://pypi.python.org/simple/

Question

I run sudo pip install git-review, and get the following messages:

Downloading/unpacking git-review
  C         


        

Answer 1

I got this error message in ~/.pip/pip.log

Could not fetch URL https://pypi.python.org/simple/: connection error: [Errno 185090050] _ssl.c:344: error:0B084002:x509 certificate routines:X509_load_cert_crl_file:system lib
  Will skip URL https://pypi.python.org/simple/ when looking for download links for regulargrid

I fixed it by updating my ~/.pip/pip.conf. It accidentally pointed to cacert.pem file that did not exist and looked like this

[global]
cert = /some/path/.pip/cacert.pem