Backport PR #33102 on branch 1.0.x (PERF: fix performance regression in memory_usage(deep=True) for object dtype)#33157

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simonjayhawkins merged 1 commit intopandas-dev:1.0.xfrom

meeseeksmachine:auto-backport-of-pr-33102-on-1.0.x

May 5, 2020

Commits on Mar 31, 2020

Backport PR #33102: PERF: fix performance regression in memory_usage(deep=True) for object dtype

neilkg
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meeseeksmachine
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