ategories ](pandas.Series.cat.reorder_categories.html)
    * [ pandas.Series.cat.add_categories ](pandas.Series.cat.add_categories.html)
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  * [ Missing values ](../missing_value.html)

  * [ __ ](../../index.html)
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  * [ Series ](../series.html)
  * pandas.Serie... 

#  pandas.Series.str.islower  #

Series.str.  islower  (  )  [ [source]  ](https://github.com/pandas-
dev/pandas/blob/v2.2.2/pandas/core/strings/accessor.py#L146-L151) #

    

Check whether all characters in each string are lowercase.

This is equivalent to running the Python string method [ ` str.islower()  `
](https://docs.python.