pyspark.pandas.Series.str.islower¶
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str.islower() → ps.Series¶ Check whether all characters in each string are lowercase.
This is equivalent to running the Python string method
str.islower()for each element of the Series/Index. If a string has zero characters, False is returned for that check.Examples
>>> s = ps.Series(['leopard', 'Golden Eagle', 'SNAKE', '']) >>> s.str.islower() 0 True 1 False 2 False 3 False dtype: bool