DICTIONARY KEYERROR :how to use backslash as a key in python dictionary

DICTIONARY KEYERROR :how to use backslash as a key in python dictionary

syntaxes={
        '>':"greater than",
        "<": "less than",
        "*": "multiplication",
        "+": "addition",
        '/': "forward slash"
        '\': "back slash" # String literal is unterminatedPylance

    }
    
input='>'
print(syntaxes[input])

我试图在 python 中使用反斜杠作为键 "",但它不允许我抛出错误

You need to use "\" double backslash everywhere where ever you need only a single backslash.
In dictionary key as well as while providing input.

syntaxes={
        '>':"greater than",
        "<": "less than",
        "*": "multiplication",
        "+": "addition",
        '/': "forward slash",
        '\': "back slash" # String literal is unterminatedPylance

    }
input='\'
print(syntaxes[input])