If __name__=='__main__'

- 
# u can import this whole by import its file name

def printhar(string):
    return f"ye string harish ko de de {string}"

def add(num1, num2):
    return num1 + num2 + 5
print("u came from", __name__)

if __name__ == '__main__':  # this will not execute below given syntax

    print(printhar("takur"))
    print(add(5, 5))

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