Should define main function and invoke it at the end Python 3.5

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Should define main function and invoke it at the end Python 3.5
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Step 1

Requirements:

Should define main function and invoke it at the end Python 3.5

Implementation:

In other programming language like C,C++ ,main function is compulsory. You can't run any program without the main function. But in Python programming language there is no any compulsion with the main function means we can execute the python program without using the main function.

That’s why we should define the main function before using it with the help of def keyword like this:

def main():

#body part

Now you can invoke the main function using the special variable like this:

if __name__=="__main__": 

    main() 

Here name is a special variable which is initialized the value of main.

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