Inconsistent behavior in python-mypy (invalid errors shown) #1711
Description
Checklist
- I have checked existing issues for potential duplicates before creating this one.
- I have read the Troubleshooting guide.
Bug description
flycheck python-mypy produces errors that are not valid/not observed when I manually run it from the command line
Steps to reproduce
Here is a sample code snippet that is pretty common in sqlalchemy
from sqlalchemy import Column, Integer, String
from sqlalchemy.ext.declarative import declarative_base
Base = declarative_base()
class User(Base):
"""The user model."""
__tablename__ = 'user'
uid = Column(Integer, primary_key=True)
name = Column(String)
Steps to reproduce the behavior:
- Errors are shown for the line
User(Base): - run flycheck-compile python-mypy on the buffer
mypy --show-column-numbers /home/void/Projects/redorg/redorg/user.py
user.py:9:12: error: Variable "redorg.user.Base" is not valid as a type
user.py:9:12: error: Invalid base class "Base"
Found 2 errors in 1 file (checked 1 source file)
- Run the same command in the command line, and it doesn't produce any errors.
Expected behavior
flycheck should not show any errors
Screenshots
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System configuration
Syntax checkers for buffer user.py in python-mode:
First checker to run:
python-flake8
- may enable: yes
- executable: Found at /home/void/.miniconda3/envs/redorg/bin/flake8
- configuration file: Not found
- next checkers: python-pylint, python-mypy
Checkers that may run as part of the first checker's chain:
python-mypy
- may enable: yes
- predicate: t
- executable: Found at /home/void/.miniconda3/envs/redorg/bin/mypy
- configuration file: Not found
Checkers that could run if selected:
python-pycompile select
- may enable: yes
- executable: Found at /home/void/.miniconda3/envs/redorg/bin/python3
- next checkers: python-mypy
Checkers that are compatible with this mode, but will not run until properly configured:
python-pylint (disabled)
- may enable: Automatically disabled!
- executable: Not found
- configuration file: Not found
- next checkers: python-mypy
Flycheck Mode is enabled. Use SPC u C-c ! x to enable disabled checkers.
--------------------
Flycheck version: 32snapshot
Emacs version: 26.3
System: x86_64-unknown-linux-gnu
Window system: x
Emacs configuration:
- Doom Emacs
Additional notes
Add any other context about the problem here.