sympy__sympy-20154

partitions() reusing the output dictionaries

Verdict: the fix is stated in the issue (Tier A).

I'm wondering if it's really that important for it to do this. It shouldn't be that much of a performance loss to copy the dictionary before yielding it.

The text states the fix: “I'm wondering if it's really that important for it to do this. It shouldn't be that much of a performance loss to copy the dictionary before yielding it.”

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