Assign Function to a Variable in Python
Last Updated :
17 May, 2021
In this article, we are going to see how to assign a function to a variable in Python. In Python, we can assign a function to a variable. And using that variable we can call the function as many as times we want. Thereby, increasing code reusability.
Implementation
Simply assign a function to the desired variable but without () i.e. just with the name of the function. If the variable is assigned with function along with the brackets (), None will be returned.
Syntax:
def func():
{
..
}
var=func
var()
var()
Example:
Python3
def a():
print ( "GFG" )
var = a
var()
|
Output:
GFG
The following programs will help you understand better:
Example 1:
Python3
x = 123
def sum ():
x = 98
print (x)
print ( globals ()[ 'x' ])
print (x)
z = sum
z()
z()
|
Output:
123
98
123
98
123
Example 2: parameterized function
Python3
def even_num(a):
if a % 2 = = 0 :
print ( "even number" )
else :
print ( "odd number" )
z = even_num
z( 67 )
z( 10 )
z( 7 )
|
Output:
odd number
even number
odd number
Example 3:
Python3
def multiply_num(a):
b = 40
r = a * b
return r
z = multiply_num
print (z( 6 ))
print (z( 10 ))
print (z( 100 ))
|
Output:
240
400
4000
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