Python | Passing dictionary as keyword arguments

Python | Passing dictionary as keyword arguments

In Python, you can use the ** unpacking operator to pass a dictionary as keyword arguments to a function. This technique can be especially useful when working with functions that accept a variable number of keyword arguments.

Here's how you can do it:

Example:

  • Define a function that takes some keyword arguments:
def display_data(name, age): print(f"Name: {name}") print(f"Age: {age}")
  • Create a dictionary with keys corresponding to the names of the function's parameters:
person_data = { "name": "Alice", "age": 30 }
  • Pass the dictionary as keyword arguments using the ** unpacking operator:
display_data(**person_data)

Output:

Name: Alice Age: 30

Variable Number of Keyword Arguments:

You can also use this technique with functions that accept a variable number of keyword arguments using **kwargs:

def display_data_v2(**kwargs): for key, value in kwargs.items(): print(f"{key}: {value}")

Now, you can pass any dictionary, regardless of its size:

person_data_v2 = { "name": "Bob", "age": 25, "job": "Engineer", "city": "New York" } display_data_v2(**person_data_v2)

Output:

name: Bob age: 25 job: Engineer city: New York

This method of passing a dictionary as keyword arguments can simplify the dynamic generation and passing of arguments to functions, making the code more flexible and readable.

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