How to avoid mypy checking explicitly excluded but imported modules _without_ manually adding `type:ignore` (autogenerated)?

In the following MWE, I have two files/modules:

main.py which is and should be checked with mypy
and importedmodule.py which should not be type checked because it is autogenerated. This file is autogenerated, I don't want to add type:ignore.

MyPy Command

$ mypy main.py --exclude '.*importedmodule.*'

$ mypy --version
mypy 0.931

main.py

"""
This should be type checked
"""

from importedmodule import say_hello

greeting = say_hello("Joe")
print(greeting)

importedmodule.py

"""
This module should not be checked in mypy, because it is excluded
"""


def say_hello(name: str) -> str:
    # This function is imported and called from my type checked code
    return f"Hello {name}!"


def return_an_int() -> int:
    # ok, things are obviously wrong here but mypy should ignore them
    # also, I never expclitly imported this function
    return "this is a str, not an int" # <-- this is line 14 referenced in the mypy error message

But MyPy complains about the function that is not even imported in main.py:

importedmodule.py:14: error: Incompatible return value type (got "str", expected "int") Found 1 error in 1 file (checked 1 source file)

What is wrong about my exclude?

Solution

Here is SUTerliakov's comment on your question written as an answer.

In the pyproject.toml file you can insert the following below your other mypy config

[[tool.mypy.overrides]]
module = "importedmodule"
ignore_errors = true

With this config you will ignore all errors coming from the mentioned module.

By using a wildcard, you can also ignore all modules in a directory:

[[tool.mypy.overrides]]
module = "importedpackage.*"
ignore_errors = true