KotlinIsland / KotlinIsland/basedmypy

infer types from index access using a literal index

Open
#341 0 comments 0 reactions 0 assignees View on GitHub
topic-inference
Dominant language
Python
Stars
202
Forks
6
PR merge metrics
No merged PRs in 30d

Description

```py
reveal_type([0][0]) # currently int, could be 0
```

_Originally posted by @KotlinIsland in https://github.com/KotlinIsland/basedmypy/pull/340#discussion_r912623393_

Contributor guide

Open the contributing guide

Research direction

Start with the issue's reveal_type([0][0]) example and trace how literal index access is inferred. Done means the revealed type is narrowed from int to the literal 0, with regression coverage for this behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
compilers
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 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.