[Bug] Caching is not unique for classes with call function

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#868 opened on Dec 14, 2025 4 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 4/5
Estimated time: 3-5 days
Newbie friendliness: 35/100

Issue type: Bug
Clarity: Needs clarification
Activity status: Stale
Tech stack: python
Domain: distributed-systems

Research direction

Start by reproducing the issue's Test class with call and the caching feature, then trace how callable classes and their instances are represented for cache keys. Check whether repeated use of the same dynamically defined callable reuses the cached calculation, and document or test the observed behavior before changing it.

Written by the indexing model from the issue text.

Description

bug

For example

class Test:
    def __call__(self, a, b):
        return a+b

While the class definition is unique the instance Test() is not this results in a different hash and consequently the calculation is repeated rather than reloaded. So at the moment it is not recommended to use dynamically defined objects in combination with the caching feature.

Dominant language: Python
Stars: 77
Forks: 7
Avg merge: 10h 32m
Merged PRs (30d): 12

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