pyspark.pandas.Series.str.join

str.join(sep)

Join lists contained as elements in the Series with passed delimiter.

If the elements of a Series are lists themselves, join the content of these lists using the delimiter passed to the function. This function is an equivalent to calling str.join() on the lists.

Parameters:

sepstr

Delimiter to use between list entries.

Returns:

Series of object

Series with list entries concatenated by intervening occurrences of the delimiter.

See also

str.split

Split strings around given separator/delimiter.

str.rsplit

Splits string around given separator/delimiter, starting from the right.

Examples

Example with a list that contains a None element.

>>> s = ps.Series([['lion', 'elephant', 'zebra'],
...                ['cat', None, 'dog']])
>>> s
0    [lion, elephant, zebra]
1           [cat, None, dog]
dtype: object

Join all lists using a ‘-’. The list containing None will produce None.

>>> s.str.join('-')
0    lion-elephant-zebra
1                   None
dtype: object