pandas.Series.str.rstrip
Series.str.rstrip(to_strip=None)-
Strip whitespace (including newlines) from each string in the Series/Index from right side. Equivalent to
str.rstrip().Returns: stripped : Series/Index of objects
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Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.18.1/generated/pandas.Series.str.rstrip.html