Install pandas in debian10 on a different python version

Question

I have a device with python3.7 preinstalled, in which i have installed also python3.9. I managed to change the version I am using of python3 and now the command "python3" followed by the.py file runs with python3.9.

The problem is I tried installing pandas with pip3 but it does not work (it didn't work even in the preinstalled python3.7), so I found that in debian you can install package, for example in this case pandas, using "sudo apt-get install python3-pandas" but this command keeps installing pandas in python3.7 and not in python3.9 even if now "python3" refers to python3.9.

Has anyone ever encountered this problem and has a solution?

Answer 1

python3.9 -m pip install pandas

Answer 2

Venv

You could use a virtual environment (venv) for installing dependencies. This venv could be project specific or global.

Run python3 -m venv.venv in your project folder to create a .venv folder, which holds the venv configuration.

Run source.venv/bin/activate to activate the venv. This will link pip3 from your python 3.9 version to the pip command.

Now you can do pip install pandas to install the pandas dependency into the venv.

Conda

Another solution would be to use Anaconda or Miniconda

https://pandas.pydata.org/pandas-docs/stable/getting_started/install.html

 conda create -n name_of_my_env python

This will create a minimal environment with only Python installed in it.

To put your self inside this environment run:

 source activate name_of_my_env

On Windows the command is:

 activate name_of_my_env

The final step required is to install pandas. This can be done with the following command:

 conda install pandas