TypeError: Unexpected Keyword Argument

Why This Happens

When calling a function with keyword arguments, Python matches each keyword to a parameter name. If no parameter matches and the function does not accept **kwargs, Python raises this error.

The Problem

def create_user(name, email):
    return {'name': name, 'email': email}

user = create_user(name='Alice', username='alice')

The Fix

def create_user(name, email):
    return {'name': name, 'email': email}

user = create_user(name='Alice', email='alice@example.com')

Step-by-Step Fix

1. 1

   Check parameter names

   Look at the function definition and verify the keyword argument name matches.

2. 2

   Check for typos

   A misspelled keyword argument will not match.

3. 3

   Add **kwargs if needed

   If the function should accept arbitrary keywords, add **kwargs to the signature.