In this topic, we discuss how to easily and interestingly to call a function before define a function in Python programming. Let’s explore how to call a function before declaring it.
Program To Call A Function Before Declaring It
Table of Contents:
- Introduction
- Program to call a function before declaring it
- Output
- Conclusion
Introduction:
To call a function before define a function efficiently, utilize appropriate methods. In Python, functions must be declared before they are called. But now we call the function before it define.
The function is called by another function. Note that this could be the most elegant way of breaking a problem into chunks of small problems.
Program:
def sumofcubes(Arr, n):
Sum = 0
for i in range(n):
cubevalued = cube(Arr[i])
Sum += cubevalued
return Sum
def cube(x):
return pow(x,3)
Arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
n = len(Arr)
Total = sumofcubes(Arr, n)
print("Sum of the Square of List of Numbers:", Total)
Output:
Sum of the Square of List of Numbers: 3025
Program 2:
def parent():
print(" Parent function called.")
child()
def child():
print("child function called")
parent()
Output:
Parent function called. child function called
Declare all functions first and then implement them in the order you want, followed by the main logic of your script.
Conclusion:
In the conclusion, Python programming offers compact methods to call a function before define a function in Python. Python doesn’t allow calling a function before it’s declared in the traditional sense due to its sequential nature. By properly organizing your code and using function references or defining functions before their usage.
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