[FIXED] Launching Spyder with multiple versions of Python

Issue

I have python 2.7 as my base. I have created an environment with python 3.7.

conda create -n py3 python=3.7

in Anaconda Prompt. Now I have activated my python 3.7.

conda activate py3 or activate py3

Now I have checked my python version with

python --version

Its states as python 3.7.7

conda run spyder

Now the spyder is launched but it is still opening in python 2.7.

I want to use PyTorch but also need python 2.7 and PyTorch is not suitable to work with python 2.7. I needed to work with PyTorch in python 3.7 and I need python 2.7 also in a single system. How can I do it? Environment setup is ok but the launching of spyder is my real issue.

Solution

Type the following in Anaconda Prompt:

conda create --name py2 Python=2.7

It will create a virtual environment with Python 2.7

activate py2

To run the spyder with the Python version of 2, the command has to be

conda run spyder

To deactivate the virtual environment:

conda deactivate

Same goes for virtual environment with Python 3

conda create --name py3 Python=3.7
activate py3
conda run spyder
conda deactivate

Answered By - Akash Chakraborty