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

This worked for me on Ubuntu 12.04.

pip install --index-url=https://pypi.python.org/simple/ -U scikit-learn

Answer 2

You might be missing a DNS server conf in /etc/resolv.conf

make sure u can ping to: ping pypi.python.org

if you're not getting a ping try to add a DNS server to file...something like:

nameserver xxx.xxx.xxx.xxx

Answer 3

In my case (Python 3.4, in a virtual environment, running under macOS 10.10.6) I could not even upgrade pip itself. Help came from this SO answer in the form of the following one-liner:

curl https://bootstrap.pypa.io/get-pip.py | python

(If you do not use a virtual environment, you may need sudo python.)

With this I managed to upgrade pip from Version 1.5.6 to Version 10.0.0 (quite a jump!). This version does not use TLS 1.0 or 1.1 which are not supported any more by the Python.org site(s), and can install PyPI packages nicely. No need to specify --index-url=https://pypi.python.org/simple/.

Answer 4

I was able to fix this by upgrading my python, which had previously been attached to an outdated version of OpenSSL. Now it is using 1.0.1h-1 and my package will pip install.

FYI, my log and commands, using anaconda and installing the pytest-ipynb package [1] :

$ conda update python
Fetching package metadata: ....
Solving package specifications: .
Package plan for installation in environment /Users/me/anaconda/envs/py27:


The following NEW packages will be INSTALLED:
    openssl:  1.0.1h-1

The following packages will be UPDATED:
    python:   2.7.5-3  --> 2.7.8-1
    readline: 6.2-1    --> 6.2-2
    sqlite:   3.7.13-1 --> 3.8.4.1-0
    tk:       8.5.13-1 --> 8.5.15-0

Proceed ([y]/n)? y
Unlinking packages ...
[      COMPLETE      ] |#############################################################| 100%
Linking packages ...
[      COMPLETE      ] |#############################################################| 100%

$ pip install pytest-ipynb
Downloading/unpacking pytest-ipynb
  Downloading pytest-ipynb-0.1.1.tar.gz
  Running setup.py (path:/private/var/folders/4f/b8gwyhg905x94twqw2pbklyw0000gn/T/pip_build_me/pytest-ipynb/setup.py) egg_info for package pytest-ipynb

Requirement already satisfied (use --upgrade to upgrade): pytest in /Users/me/anaconda/envs/py27/lib/python2.7/site-packages (from pytest-ipynb)
Installing collected packages: pytest-ipynb
  Running setup.py install for pytest-ipynb

Successfully installed pytest-ipynb
Cleaning up...

[1] My ticket about this issue; https://github.com/zonca/pytest-ipynb/issues/1

Answer 5

If that's not a proxy/network problem you should try to create/edit config file .pip/pip.conf or if you are running pip as root /root/.pip/pip.conf. Check and change index-url from http to https.

It should be like this:

[global] 
index-url=https://pypi.python.org/simple/

Worked for me with Ubuntu 12 and pip 9.0.1

Answer 6

it works!

sudo pip --proxy=http://202.194.64.89:8000 install elasticsearch ; 202.194.64.89:8000 is my PROXY,