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Used in-built method (#5183)

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* Used in-built method

* Delete swap_case.py

Co-authored-by: Christian Clauss <cclauss@me.com>
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Rohanrbharadwaj 2021-10-10 23:22:38 +05:30 committed by GitHub
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strings/swap_case.py
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"""
This algorithm helps you to swap cases.
User will give input and then program will perform swap cases.
In other words, convert all lowercase letters to uppercase letters and vice versa.
For example:
1. Please input sentence: Algorithm.Python@89
aLGORITHM.pYTHON@89
2. Please input sentence: github.com/mayur200
GITHUB.COM/MAYUR200
"""
def swap_case(sentence: str) -> str:
"""
This function will convert all lowercase letters to uppercase letters
and vice versa.
>>> swap_case('Algorithm.Python@89')
'aLGORITHM.pYTHON@89'
"""
new_string = ""
for char in sentence:
if char.isupper():
new_string += char.lower()
elif char.islower():
new_string += char.upper()
else:
new_string += char
return new_string
if __name__ == "__main__":
print(swap_case(input("Please input sentence: ")))