Python code typed on console for practice, other than this we can also save our code to various files.
In the following example we have created testfile.py(.py is python file extension) in python home directory which is the directory in which python is installed. See the following Image :
Now type the following code into your testfile.py which we made earlier :
def Hello(): print "hello function" return 20
Now open your console and type the following commands:
>>> import testfile >>> a = testfile.Hello() hello function >>> a 20 >>>
First of all we need to import the file we have created, import it without extension. Next I have called this function into a variable say a which will store the returned result. and at last the function displays hello function and value of 20 is displayed on screen.