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ENH: Add lazy copy to swaplevel #50478

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jorisvandenbossche merged 1 commit into pandas-dev:main from phofl:cow_swaplevel

Jan 3, 2023

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phofl commented Dec 28, 2022 •

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xref ENH / CoW: Use the "lazy copy" (with Copy-on-Write) optimization in more methods where appropriate #49473 (Replace xxxx with the GitHub issue number)
Tests added and passed if fixing a bug or adding a new feature
All code checks passed.
Added type annotations to new arguments/methods/functions.
Added an entry in the latest doc/source/whatsnew/vX.X.X.rst file if fixing a bug or adding a new feature.


          ENH: Add lazy copy to swaplevel

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jorisvandenbossche mentioned this pull request

ENH / CoW: Use the "lazy copy" (with Copy-on-Write) optimization in more methods where appropriate #49473

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jorisvandenbossche added the Copy / view semantics label

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jorisvandenbossche left a comment

Looks good, thanks!

jorisvandenbossche added this to the 2.0 milestone

jorisvandenbossche merged commit b29db1b into pandas-dev:main

phofl deleted the cow_swaplevel branch

January 3, 2023 11:08

This pull request was closed.

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Copy / view semantics