BUG: using .replace() on a Series containing np.nan raising ValueError when using regex=True.#44653

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jreback merged 2 commits intopandas-dev:masterfrom

DriesSchaumont:fix-43344

Dec 1, 2021

Commits on Nov 28, 2021

BUG: using .replace() on a Series containing np.nan raising ValueError when using regex=True.
DriesSchaumont
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Commits on Nov 29, 2021

Merge remote-tracking branch 'upstream/master' into fix-43344
DriesSchaumont
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