python / python/mypy

No error about `__future__` import placed after some statements

Open
#14,195 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

bug topic-runtime-semantics
Dominant language
Python
Stars
20.6k
Forks
3.3k
PR metrics pending

Description

print('Hello')
from __future__ import annotations

At runtime i get SyntaxError:

  File "D:\_.py", line 2
    from __future__ import annotations
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: from __future__ imports must occur at the beginning of the file

Expected Behavior

  • invalid syntax error

Actual Behavior

  • no errors

Your Environment

  • mypy 1.0.0+dev.db0beb1014d8367221d47d3b11e2b49e757fa2fa (compiled: no) (almost latest currently)

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

Start by locating mypy's handling of future imports and its existing diagnostics or tests for import placement. Reproduce the reported example, then add coverage and ensure mypy reports the misplaced import as invalid syntax or an equivalent error.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
devtools
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.