[Python] VS Code not being able to recognize modules and constants imported from other scripts

I have a general question when working on larger projects using Visual Studio Code, where I want to avoid writing the same imports and defining constants in every python file. Let us say I have a project structure as follows:

project/
helpers.py
scripts/
plot.py


In helpers.py, I import modules and define constants for plotting, such as

import matplotlib.pyplot as plt

LINE_WIDTH = 2


As I want to avoid defining the line width on figures and importing matplotlib.pyplot in every script, I add the project folder to my python path, export $PYTHONPATH=/folder/to/project/:$PYTHONPATH, such that I in plot.py simply can write

from helpers import *

plt.plot([1,2,3], [1,4,9], lw=LINE_WIDTH)
plt.savefig('figure.png')


In plot.py, VS Code believes that plt and LINE_WIDTH are not defined, but the scripts run fine, and I get the plot. Is there any way to make VS Code realize what have been imported from helpers.py, such that I do not have to remember all the specific variable namings when making new scripts?

I have tried to search for similar problems, but the closest I get is to problems related to relative imports.


I add a screenshot to visualize my problem:



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