Install a module to a specific to Python Installation (one of many))

[snippsat]

I'd like to install a new module for the "C:\Python308\python.exe", I understand PIP would not work for the local installation. How could I install/upgrade a module?

As mention use py.
Here i install Requests to Python 3.8.

G:\div_code
λ py -3.8 -m pip install requests
Collecting requests
.....  
Successfully installed certifi-2024.8.30 charset-normalizer-3.4.0 idna-3.10 requests-2.32.3 urllib3-2.2.3

As mention uv is good.
Here it download and install a full python 3.13 version,and i activate environment.

G:\div_code\py_313
λ uv venv --python 3.13.0
Using CPython 3.13.0
Creating virtual environment at: .venv
Activate with: .venv\Scripts\activate

G:\div_code\py_313
λ .venv\Scripts\activate

G:\div_code\py_313
(py_313) λ python --version
Python 3.13.0

Eg install Request to it,it's fast🚀

G:\div_code\py_313
(py_313) λ uv pip install requests
Resolved 5 packages in 440ms
Prepared 5 packages in 394ms
░░░░░░░░░░░░░░░░░░░░ [0/5] Installing wheels...
warning: Failed to hardlink files; falling back to full copy. This may lead to degraded performance.
         If the cache and target directories are on different filesystems, hardlinking may not be supported.
         If this is intentional, set `export UV_LINK_MODE=copy` or use `--link-mode=copy` to suppress this warning.
Installed 5 packages in 449ms
 + certifi==2024.8.30
 + charset-normalizer==3.4.0
 + idna==3.10
 + requests==2.32.3
 + urllib3==2.2.3

G:\div_code\py_313
(py_313) λ python
Python 3.13.0 (main, Oct 16 2024, 00:33:24) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import requests
>>> exit
 
G:\div_code\py_313
(py_313) λ