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PROGRAMMING MODES IN PYTHON
Python provides two basic programming modes: Interactive Mode and Script Mode.
INTERACTIVE MODE (IDLE SHELL WINDOW)
The IDLE Shell window
is an interactive window
where we can type Python
code and view the output
in the same window. In
the IDLE Shell window, the
>>> sign appears. Here, we can type our code and get output by pressing the Enter key.
SCRIPT MODE (EDITOR WINDOW)
Python Shell executes commands immediately and doesn't save them for later use. For multi-
line code and to save your work for future use, you should use Python script mode. This allows
you to write larger programs and run the same code multiple times. Save your code in a file, for
example, filename.py, and run it to see all the output after execution.
To open Python’s Editor Window, click on the File New File option from the Menu bar. The
Python's Editor opens. Here, we can type the code..
The output is displayed in the Python Shell window.
INPUT AND OUTPUT
Python provides two commonly used functions input() and print() for input and output
respectively.
THE input() FUNCTION
We use the input() function to take the user’s input while a program is being executed. The
general syntax of the input() function is as follows:
Variable_name = input(<message to be displayed>)
Introduction to Python 95

