问题
I am constantly getting the
Cannot fetch index base URL https://pypi.python.org/simple/
whenever I try to pip install anything with the most recent pip version.
I read on some other questions that pip was having SSL related issues in its latest version and recommended to install pip 1.2.1.
How do I install a specific version of pip via easy_install for example?
回答1:
You should be able to install pip with pip:
pip install --upgrade pip==1.2.1
回答2:
Based on your context, you can uninstall as above and then run:
sudo easy_install pip==1.2.1
No more pesky SSL errors.
回答3:
Uninstall any previous installation of pip. Considering you are using system wide installation,
sudo apt-get remove python-pip
and also,
pip uninstall pip
Now,
sudo apt-get install python-setuptools
sudo easy_install pip==<specific version>
sudo pip install virtualenv
It's preferred to use virtual environment though.
来源：https://stackoverflow.com/questions/25942386/how-can-i-install-a-specific-version-of-pip-via-easy-install-mac-os-mavericks