Unable to install packages with pip (SSL: CERTIFICATE_VERIFY_FAILED)

Question

I've been unable to download any package with pip and I keep getting the same error about a problem confirming the SSL certificate. I'm currently on my university's network and I also have Anaconda installed on my laptop. I'm not sure if those two factors have anything to do with this issue.

I am using python version 3.7.0 , pip version 9.0.1 and pip3 version 10.0.1 .

When I type pip install django in the terminal I get this result:

Collecting django
  Could not fetch URL https://pypi.python.org/simple/django/:
     There was a problem confirming the ssl certificate: 
     [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749)
     - skipping
  Could not find a version that satisfies the requirement django (from versions: )
No matching distribution found for django

I've read several other threads. I've tried commands such as these without success:

curl https://bootstrap.pypa.io/get-pip.py | python3
pip install --upgrade pip
pip install --trusted-host pypi.org --trusted-host \
  files.pythonhosted.org django

Answer 1

According to this issue you should also add pypi.python.org to the command line as a trusted host, ie:

pip install --trusted-host pypi.org --trusted-host pypi.python.org \
            --trusted-host files.pythonhosted.org django

Answer 2

I faced similar issue the solution worked for me is by adding three path to environment variables

C:\Anaconda3; 

C:\Anaconda3\Scripts; 

C:\Anaconda3\Library\bin;

I had been using python 3.7.1 with anaconda 4.8.2 on window 7. You may check for missing path environment variable and add only the missing ones.

Answer 3

Open Anaconda prompt and run the following:

conda install -f pip

pip install pandas