python / python/mypy

Indicate "origin" of Any due to ignored missing import

Open
#15,276 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

feature
Dominant language
Python
Stars
20.6k
Forks
3.3k
PR merge metrics
PR metrics pending

Description

Let

from unknown_module import Base

class Bar(Base):
    pass
  • With --ignore-missing-imports and --disallow-subclassing-any, you get:
    main.py:3: error: Class cannot subclass "Base" (has type "Any")  [misc]
    
  • With --ignore-missing-imports and --disallow-any-unimported, you get:
    main.py:3: error: Base type Base becomes "Any" due to an unfollowed import  [no-any-unimported]
    

In both cases, and in particular in the second case, it could be helpful to mention "unknown_module".

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the examples in main.py with --ignore-missing-imports, --disallow-subclassing-any, and --disallow-any-unimported, then trace the diagnostic entry point for these messages. Done means the relevant error output identifies unknown_module as the source of the Any value.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
devtools
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.