How to install pip for python3.3 alongside default python

Question

I downloaded and installed python3.3 from the website and followed the instructions in the readme file.

I can run python3.3 from commandline, but when I try to install a package with pip, it will install to the default python (Anaconda python 3.6 in my case).

I tried installing a new pip using easy_install as described here, but it gives me the error saying

/usr/local/bin/python3.3: No module named easy_install

How can I install the setuptools if I don't have pip?

Answer 1

I solved my problem by using the virtualenv from anaconda directly as described here.

conda create -n py33 python=3.3 anaconda

This will also setup pip, so installation of new packages is possible.

Answer 2

Does your Anaconda distribution (Python 3.6) have pip installed already? If yes, you can use virtualenv as virtual environment.

1. Check if you have virtualenv installed. In my computer, I have virtualenv 16.0.0 installed.

   $ virtualenv --version
   16.0.0
   

   If it says, "command not found", you can install virtualenv.

   $ pip3 install virtualenv
   

2. Once virtualenv is installed, create a new virtual environment, with Python 3.3. In the command below, we will create a new virtual environment called venv, that uses Python 3.3.

   $ virtualenv --python=/usr/bin/python3.3 <path/to/new/virtualenv/> venv
   

   If it says the path does not exist, check the path to python 3.3 using which command.

   $ which python3.3
   

3. Activate the the virtual environment venv. The commands are activate to activate and deactivate to deactivate.

   $ source venv/bin/activate
   

4. Install the package that you want.

   $ pip3 install X
   

5. Once you are done and what to use the default Python 3.6, deactivate the virtual environment.

@aeduG's answer is correct. Alternatively, you can use virtualenv. See here for the differences between conda virtual environment and virtualenv.

See here if you want to use conda's virtual environment instead.