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Detect useless copy/deepcopy #9509

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fc-asad opened this issue Mar 19, 2024 · 1 comment
Open

Detect useless copy/deepcopy #9509

fc-asad opened this issue Mar 19, 2024 · 1 comment
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Discussion 🤔 Enhancement ✨ Improvement to a component Needs decision 🔒 Needs a decision before implemention or rejection

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@fc-asad
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fc-asad commented Mar 19, 2024

Current problem

I have seen code where a copy/deepcopy of an immutable data is made. As far as I understand, it is a useless operation.

Desired solution

Pylint should detect when copy/deepcopy of an immutable object is made and generate an error.

Additional context

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@fc-asad fc-asad added the Needs triage 📥 Just created, needs acknowledgment, triage, and proper labelling label Mar 19, 2024
@Pierre-Sassoulas Pierre-Sassoulas added Enhancement ✨ Improvement to a component Discussion 🤔 Needs decision 🔒 Needs a decision before implemention or rejection and removed Needs triage 📥 Just created, needs acknowledgment, triage, and proper labelling labels Mar 19, 2024
@Pierre-Sassoulas
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+1, but inferring if something is immutable is hard, so the check would be limited to known immutable type or the false positives would make this check unusable.

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@Pierre-Sassoulas @fc-asad