Instructions for creating a conda enviroment with python3.8.8

[melhemr]

PR will add instructions for creating a conda environment to ensure python version is 3.8.8

[melhemr]

@AbdulkadirA

The only line I wasn't entirely sure how to deal with this line since I am using a mac:

Prepare environment for PowerShell (Windows 10 or 11)

Assuming conda enviroment with Python version 3.8.8 has been created

**& env/Scripts/Activate.ps1**
python -m pip install --upgrade pip
poetry install

In these instructions, I've outlined it so the users create a conda enviroment, so I'm not sure where or how the & env/Scripts/Activate.ps1 should be implemented for Windows users. Can you let me know?

[ashishsingh18]

@melhemr In my conda env, I usually just do:
python -m pip install -U -e .
poetry install

[ashishsingh18]

It might be clearer if we create 2 separate sections for installation: one using conda and the other using virtual env.

[AbdulkadirA]

@melhemr Thanks. I made some suggestions.

[AbdulkadirA]

And one more comment ..

[AbdulkadirA]

@melhemr Thanks. Please leave the sections on setting up the PIP venv for Windows and Linux as they were and only add a section for conda. You could add the indication of PIP to the exiting section headers, though.

[melhemr]

@melhemr Thanks. Please leave the sections on setting up the PIP venv for Windows and Linux as they were and only add a section for conda. You could add the indication of PIP to the exiting section headers, though.

Can you clarify what you mean? I did leave the PIP section alone, and added conda sections as we discussed. Windows for example:

### Prepare environment for PowerShell (Windows 10 or 11)
Assuming current working directory is `NiBAx` and containing the source code
cloned from https://github.com/CBICA/NiBAx.git.

Virtual environment
```shell
python -m venv .env
& .env/Scripts/Activate.ps1
python -m pip install --upgrade pip
poetry install

Conda environment (assuming conda environment with Python version 3.8.8 or newer has been created)
```shell
conda activate NiBAx
python -m pip install --upgrade pip
poetry install

[AbdulkadirA]

@melhemr I propose a couple of changes to further simplify.

[melhemr]

@AbdulkadirA the changes look good. The only final concern I had is about Ashish's comment above. It seems that using a conda environment with a Windows OS still requires using the command poetry install. I don't know if that's 100% necessary, but if it is, how should we include that in the conda environment section?

[AbdulkadirA]

Poetry is generally not required, only to package the toolbox.