In Python, what is the difference between parameters and arguments?

The concept of arguments and arguments is part of functions in Python. So, before continuing, let's learn how to create a function and functions with parameters.

A function is an organized, reusable piece of code that performs a single, related operation. Functions provide your application with better modularity and a high degree of code reusability.

Create a function

Example

Example

Let’s create a basic function −

# Define a function
def sample():
   print("Inside a Function")

# Function call
sample()

Output

Inside a Function

Create a function with parameters

Here, we are creating a function with parameters −

# Creating a Parameterised Function
def sample(str):
   print("Car = ", str)

# Function calls
sample("Tesla")
sample("Audi")
sample("BMW")
sample("Toyota")

Output

('Car = ', 'Tesla')
('Car = ', 'Audi')
('Car = ', 'BMW')
('Car = ', 'Toyota')

parameter

Parameters are defined by their names as they appear in the function definition. Parameters define the types of arguments a function can accept. So, based on the above example of a function with parameters, the following is one parameter, which is str −

# Function Definition
def sample(str):

parameter

Parameters are the values ​​actually passed to the function when it is called. So, based on the above example of a function with parameters, the following are the parameters, namely Tesla, Audi, BMW and Toyota−

# Function calls
sample("Tesla")
sample("Audi")
sample("BMW")
sample("Toyota")

Example

Example

Let’s see an example -

# Function Definition
def sample(name, rank):
   print("Employee Name = ",name)
   print("Employee Rank = ",rank)

# Function call
sample(rank = 3,name = "Tim")

Output

Employee Name = Tim
Employee Rank = 3

Above, name and rank are parameters of the sample() function.

3 and Tim parameters of the sample() function.

Let's look at another example where we have **kwargs and a parameter −

def func(foo, bar=None, **kwargs):
   pass

Output

func(10, bar=20, extra=somevar)

Above, foo, bar, and kwargs are the parameters of func().

the values ​​10, 20, and somevar are arguments of the func().

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