all Python 3Strings (str)function

str.swapcase

case

Return a copy with uppercase characters converted to lowercase and vice versa.

Syntax

s.swapcase()

Applying swapcase() twice does not necessarily restore the original: ß turns into SS, and back again it becomes ss. Characters without case — digits, spaces, punctuation — are left alone, and outside of exercises this method is rarely what a real task needs.

Examples

print('Hello World'.swapcase())  # → hELLO wORLD
print('Привет'.swapcase())       # → пРИВЕТ
print('abcABC123'.swapcase())    # → ABCabc123

See also

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