linter-mypy generating many duplicate errors

[Askaholic]

For some reason many of my mypy warnings show up multiple times. Any idea why this would be happening? I am using mypy in conjunction with the linter-flake8 package.

Atom: 1.33.1
OS: Ubuntu 18
Python: 3.6
Pip:

mypy==0.701
mypy-extensions==0.4.1

[elarivie]

Hello @Askaholic

I have seen similar behavior with other linter like for example "Flake8":

It may be related to the following bug steelbrain/linter#1450 from the package "Linter" which describe a feature about filtering duplicate warnings.

But I think that the real root cause is some kind of memory leak or race condition within the "linter" package where warnings which are no more needed are nevertheless kept in the list because a Workaround: to remove duplicate lint warning is to close and re-open atom. This seems to reset the internal memory of the "Linter" package and duplicate/no more needed warnings disappear.

[elarivie]

Bug not directly related to linter-mypy, closing this issue...