PandasdrillTidy up text with strip and lower
A pandas exercise from Pandasdrill. Solve it with a Python editor in your browser running real pandas, and it is checked the moment you submit.
The task
The emails in `signups` have stray spaces and mixed case. Return the `email` column as a Series with spaces removed from both ends and every letter in lowercase.
What this exercise teaches
str.strip removes leading and trailing whitespace and str.lower lowercases every character. Chaining them cleans both problems in one expression, and the order does not matter here.
A hint if you get stuck
String methods live under .str on a Series, and you can chain them.
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