Check-* ignores exclude directive in mypy.ini

[WolfByttner]

Step 1: Are you in the right place?

• I have verified there are no duplicate active or recent bugs, questions, or requests
• I have verified that I am using the latest version of the plugin.

Step 2: Describe your environment

• Plugin version: 0.16.2
• PyCharm/IDEA version: Pycharm Professional 2023.3 (Mac)
• Mypy version: 1.8.0

Step 3: Describe the problem:

The mypy plugin does not appear to respect (or pick up) the exclude directive in a mypy config file. This applies when running all scans (Project/Module/Modified Files/Current Change List). It applies whether I try to ignore one file or multiple files, and whether they are at the root directory or not. Below, I have illustrated the problem with bazelisk.py.

This is the basic structure of the mypy.ini file (note the leading and trailing newlines):

[mypy]
exclude = (?x)(bazelisk\.py)

I have tried different variations of the exclude directive, including the below:

• exclude = bazelisk\.py
• exclude = bazelisk.py
• exclude = ^bazelisk.py
• exclude = ^bazelisk.py$
• exclude = ^bazelisk\.py$
• exclude = bazelisk\.py$
• exclude = "bazelisk\.py"
• exclude = (?x)(bazelisk\.py)

Mypy provides the following example file format:

[mypy]
exclude = (?x)(
    ^one\.py$    # files named "one.py"
    | two\.pyi$  # or files ending with "two.pyi"
    | ^three\.   # or files starting with "three."
  )

They also note that "The above is equivalent to: (^one\.py$|two\.pyi$|^three\.)."

These are my mypy settings:

I have tried setting the config file both in the Path to config file window and in the Arguments window.

Steps to reproduce:

1. Add a file called bazelisk.py with mypy errors (I used this file). Note that I added this file in the root folder, but the issue appears to occur no matter the location of the file.
2. Run any of the mypy checks (Project/Module/Modified Files/Current Change List) in the mypy tab.

Observed Results:

Mypy found errors in bazelisk.py

Expected Results:

Mypy should not find errors in bazelisk.py