Dealing with multiple Python versions and PIP?

Question

Is there any way to make pip play well with multiple versions of Python? For example, I want to use pip to explicitly install things to either my s

Answer 1

pip is also a python package. So the easiest way to install modules to a specific python version would be below

 python2.7 /usr/bin/pip install foo

or

python2.7 -m pip install foo

Answer 2

This is probably the completely wrong thing to do (I'm a python noob), but I just went in and edited the pip file

#!/usr/bin/env python3 <-- I changed this line.

# -*- coding: utf-8 -*-
import re
import sys

from pip._internal import main

if __name__ == '__main__':
    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
    sys.exit(main())

Answer 3

I had python 2.6 installed by default (Amazon EC2 AMI), but needed python2.7 plus some external packages for my application. Assuming you already installed python2.7 alongside with default python (2.6 in my case). Here is how to install pip and packages for non-default python2.7

Install pip for your python version:

curl -O https://bootstrap.pypa.io/get-pip.py
python27 get-pip.py

Use specific pip version to install packages:

pip2.7 install mysql-connector-python --allow-external mysql-connector-python

Answer 4

for Blender:

/usr/bin $ python3.7 -m pip install irc

Answer 5

For windows specifically: \path\to\python.exe -m pip install PackageName works.

Answer 6

Another possible way could be using conda and pip. Some time you probably want to use just one of those, but if you really need to set up a particular version of python I combine both.

1. I create a starting conda enviroment with the python I want. As in here https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html. Alternatively you could set up the whole enviroment just using conda.

   conda create -n myenv python=3.6.4

2. Then activate your enviroment with the python you like. This command could change depending on the OS.

   source activae myenv

3. Now you have your python active then you could continue using conda but if you need/want to use pip:

   python -m pip -r requirements.txt

Here you have a possible way.