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[NOT FOR MERGE] Test enabling Copy-on-Write by default #55732

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[NOT FOR MERGE] Test enabling Copy-on-Write by default #55732

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4 changes: 1 addition & 3 deletions pandas/core/config_init.py
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Original file line number Diff line number Diff line change
Expand Up @@ -476,9 +476,7 @@ def use_inf_as_na_cb(key) -> None:
"copy_on_write",
# Get the default from an environment variable, if set, otherwise defaults
# to False. This environment variable can be set for testing.
"warn"
if os.environ.get("PANDAS_COPY_ON_WRITE", "0") == "warn"
else os.environ.get("PANDAS_COPY_ON_WRITE", "0") == "1",
True,
copy_on_write_doc,
validator=is_one_of_factory([True, False, "warn"]),
)
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