How to use blender through VSCode with python for integrating 2D widgets with 3D models

Question

I am new to Blender community and has created some add-ons to model things through code..

However, I am failing to execute the same code through my IDE , IDLE and VS Code with all my paths set for Python 3.7.0 installed inside python folder of Blender 2.80 directory in C drive (cant use other version for VS Code as Blender extension in VS Code only supports python 3.7.0 and the same Python version is compatible with only Blender 2.80)

However I have installed UPBGE in another drive with latest versions of Python(3.9.1) and Blender(2.93 Alpha).. There, I manually installed latest version of Python like the one I had installed

So, I have my python interpreters at two following locations

C:\Program Files\Blender Foundation\Blender\2.80\python\python.exe

D:\Softwares\UPBGE\2.93\python\python.exe

Problems are as follows:

1. When I check python version through command " py --version " it displays 3.9.1 even when interpreter selected as 3.7.0 in VS Code selected interpreter ambiguity

2. Whenever I install any pypi module through cmd, it installs the module to older version, ie, 3.7.0 directory in C drive even when python 3.9.1 interpreter selected Blender stores its built in python interpreter inside bin directory inside python folder

3. Whenever I try to run any script importing bpy stuff, it says bpy module is not present cannot find the module named bpy-types

Answer 1

1. Installing python libraries into blender's python environment.

   <[Blender Python.exe path]> -m pip install <[Package Name]>

For example, in your case for UPBGE:

D:\Softwares\UPBGE\2.93\python\python.exe -m pip install <[Package Name]>

If the command fails you might need to add "pip" to you python env available here: https://bootstrap.pypa.io/get-pip.py

2. For running a script that uses bpy you also need to use Blenders python.

   <[Blender Python.exe path]> <[Script Path]>