DataFrame selection and cleaning without guessing (step 5/7) · dataframes with numpy and pandas

Fix clean_email(value) so it trims whitespace before lowercasing.

The break is on line 2 — but read the whole snippet first.

Fix clean_email(value) so it trims whitespace before lowercasing.

The break is on line 2 — but read the whole snippet first.

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DataFrame selection and cleaning without guessing — step 5 of 7