1
00:00:02,340 --> 00:00:10,380
In this example we have defined three functions and then we have a function call for each of these functions

2
00:00:10,680 --> 00:00:18,420
at the bottom of the function definition and then by passing the arguments we can execute each of these

3
00:00:18,690 --> 00:00:19,920
functions.

4
00:00:19,920 --> 00:00:30,150
But many programming languages like C++ and Java required a main function in order to execute the functions

5
00:00:30,240 --> 00:00:31,110
in your program.

6
00:00:31,560 --> 00:00:40,650
So including a main function is not required in Python but it can structured python programs in a logical

7
00:00:40,650 --> 00:00:47,190
way that puts most of the important components of the program into one function.

8
00:00:47,190 --> 00:00:49,170
That is the main function.

9
00:00:49,170 --> 00:00:54,710
And it also makes up programs easier for non Python programmers to read.

10
00:00:55,320 --> 00:01:04,230
So instead of placing the function calls at the bottom of each function we are going to define the main

11
00:01:04,230 --> 00:01:11,810
function and then place all the function calls to different functions defined in your program here.

12
00:01:11,820 --> 00:01:20,640
Now I have included the main function in the python program and function calls to different functions

13
00:01:20,730 --> 00:01:28,710
in our python program are now included in the main function so including a main function in our programs

14
00:01:28,740 --> 00:01:33,240
can be handy to structure our code in a logical way.

15
00:01:33,930 --> 00:01:39,210
So most of the important components are contained within this main function.