How to make sure python script uses virtual environment?

Question

I created virtual environment and activate it. installed packages but unable to import them from virtual environment.

pip freeze:

But

Answer 1

In many cases it's not necessary to activate a virtual environment. Typically you could do something like the following from anywhere without activating the virtual environment:

• C:\path\to\venv\Scripts\python.exe -m pip somecommand
• C:\path\to\venv\Scripts\python.exe different\path\to\script.py
• etc.

Additionally you could specify the absolute path to the python.exe as a she-bang at the top of your Python script, and execute the script directly (for example with a double-click) without calling Python explicitly.

#!/path/to/venv/bin/python3

print("Hello world")

References:

• https://docs.python.org/3/using/windows.html#shebang-lines
• https://docs.python.org/3/library/venv.html#creating-virtual-environments