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MartinThoma/union_optional.py

Created March 29, 2021 10:46
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union_optional.py
from typing import Union
def upcase(s: Union[str, bytes]) -> Union[str, bytes]:
if isinstance(s, str):
return s.upper()
elif isinstance(s, bytes):
return bytes(x - 0x20 if 0x61 <= x <= 0x7A else x for x in s)
else:
raise TypeError("need str or bytes")
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