How to invert case for all letters in a string in Python?

String class has a method called swapcase() for swapping case of all letters. You can use it as follows:

>>> 'Hello World 123'.swapcase()
'hELLO wORLD 123'
>>> 'Make America Great Again'.swapcase()
'mAKE aMERICA gREAT aGAIN'

Rajendra Dharmkar

Updated on 30-Sep-2019 06:36:15

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