Converting Japanese Hiragana to Katakana

app.py

def hiragana_to_katakana(src: str) -> str:
    result = ''
    for char in src:
        code = ord(char)
        result += chr(code + 96) if 12352 < code < 12439 else char
    return result


print(hiragana_to_katakana('てすと'))
# It outputs 'テスト'.