Python3 pickle: Expected type 'SupportsWrite[bytes]', got 'BinaryIO' instead

Question

A simple program in PyCharm 2024.2.3.(Community Edition)

import pickle

fruits = ['apples', 'oranges', 'banana']

with open('myData.pkl', 'wb') as f:
    pickle.dump(fruits, f)

PyCharm gives me a warning:

Expected type 'SupportsWrite[bytes]', got 'BinaryIO' instead

The program runs correctly, but how do I get rid of this warning?

Python tutorials say that this simple usage of pickle should work.

Answer 1

The warning is erroneous. You can suppress it as follows:

import pickle

fruits = ['apples', 'oranges', 'banana']

with open('myData.pkl', 'wb') as f:
    # noinspection PyTypeChecker
    pickle.dump(fruits, f)

Note:

This is specific to PyCharm