pandas.Series.str.extract — pandas 0.18.1 documentation (original) (raw)

DataFrame with one row for each subject string, and one column for

each group. Any capture group names in regular expression pat will

be used for column names; otherwise capture group numbers will be

used. The dtype of each result column is always object, even when

no match is found. If expand=True and pat has only one capture group,

then return a Series (if subject is a Series) or Index (if subject

is an Index).