Python is a very interesting programming language to learn. In programming languages, when an operating system runs a program, a special function called main() is executed automatically. Python also has a main(). In Python, the focal point of the execution of any program is the main() and it acts as the entry point of the code. It is important to define the main function to start executing a program. It is important to define the main function in Python to start the execution of the program. The program does not get executed as a module, it has to be run directly.

In this tutorial, we will understand what a main function in Python is and how it works. We will also see how the variable name works in Python.

Basic main() in Python

In Python scripts, a conditioning statement sometimes follows a defining function. Let’s look at an example.

print("Hello World")

def main():

print("A basic main function")

if __name__ == "__main__";:

main()

Output:

Hello World

A basic main function

In the above code, the main() prints the message “A basic main function” when the script is executed. This is followed by a conditional statement (if statement). The if statement compares the value of name to the string “main”. If the conditional statement is true, it prints “A basic main function” upon execution. This is a very common code pattern when files need to executed as Python scripts or imported in a module. It is important to realize that the in Python name is defined based on how the code gets executed. Let us first understand the different modes of execution in Python before seeing how the above code works.

#functions #python #define