如何告诉VSCode python 包实际上已安装？

Question

I am building a Python application with the Pygame library and I am using Docker to containerize it.

Here is the Dockerfile :

FROM python

WORKDIR /app

COPY requirements.txt .

RUN pip install -r requirements.txt

COPY . .

CMD ["python", "main.py"]

Here is requirements.txt :

autopep8==1.6.0
pygame==2.1.0

Here is the docker-compose.yaml file:

version: "3.8"
services:
  app:
    build: ./
    stdin_open: true
    tty: true

Here is main.py :

import pygame

print("hello there")

This is what happens when I run docker-compose up :

Attaching to connect-four_app_1
app_1  | pygame 2.1.0 (SDL 2.0.16, Python 3.10.1)
app_1  | Hello from the pygame community. https://www.pygame.org/contribute.html
app_1  | hello there
connect-four_app_1 exited with code 0

As you can see, the application is working perfectly fine. The only problem is that in my main.py file, VSCode isn't able to find pygame , ie it thinks it isn't installed, and therefore I don't get any autocompletion for the library. How do I tell VSCode that pygame is in fact installed, but only in the container?

Thanks a bunch.

Answer 1

I have never worked with Docker so I do not know if this will help you. But my experience working with virtualenvs is that you should tell VS Code what Python interpreter you want it to use to run your code. Depending on where you have installed the packages, maybe you are using an interpreter that cannot reach the packages you have installed (maybe you have this package using a different Python installation, on a different directory).

Just to rule out that this is not the problem, try pressing F1 and then typing/selecting "Python: Select interpreter" on VS Code. And then you can go through all Python versions installed in your PC to see which one recognizes the packages you want. Hope this help you a bit.