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Python String | join method
schedule Aug 10, 2023
Last updated local_offer
Tags Python
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Python's str.join(~) method concatenates the elements of an iterable and returns the resultant string.
Parameters
1. iterable | iterable
The iterable whose elements are to be concatenated.
Return value
A concatenated string of elements of the iterable.
Examples
Basic usage
To concatenate the elements of iterable x using a comma separator:
x = ('a', 'b', 'c')separator = ','separator.join(x)
'a,b,c'
Note that the elements in tuple x are concatenated with separator ',' in between each item.
TypeError
To concatenate the elements of iterable x using a comma separator:
x = {1, 2, 3}separator = ','print(separator.join(x))
TypeError: sequence item 0: expected str instance, int found
A TypeError is raised as there are non-string values in the iterable x.
Usage with dictionaries
The join(~) method will concatenate the keys of a dictionary rather than values:
cars = {"Ferrari": "red", "Porsche": "silver", "Bentley": "black"}separator = " > "separator.join(cars)
'Ferrari > Porsche > Bentley'
Published by Isshin Inada
Edited by 0 others
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Official Python Documentation
https://docs.python.org/3/library/stdtypes.html#str.join
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