Python – Functions
As we read earlier about Python Operators . Now we will study about Functions in Python. In python programming language , Functions are a very important concept. If we create any one program, then we have to first create functions in it, it is very important to have a functions in big programs. We will not be able to run any program properly without creating functions. so lets start study about python functions.
What is a function in python ?
Function is a separate block of code that can be executed independently. It is used to reduce complexity of program. In other words, Function is a concept by which we can connects two or more machine or layers and also transfer data from one machine to another machine or layer.
How to create a function in python ?
Python function syntax :
def name of function ( comma separated argument ): statement - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Guidelines before creating any function :
Thinking about about the naming of functions.
Thinking about the input of functions.
Thinking about the return type or output of function.
def sum(number1, number2): result = number1 + number2 return result
The above code is a Non-executable code.
Two important functions in python are :
- Print function : The print( ) function prints the specified message to the screen, or other standard output device. The message can be a string, or any other subject, the object will be converted into a string before written to the screen.
Print function syntax :
print ( object(s), separator=separator, end=end, file=file )
- Input function : The input function reads a line from input is known as Input function. Input function always return string data type.
Input function syntax :
input ( prompt )
Name = input("Enter your Name :")
Enter your Name :
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