Modes of python interpreter:
Python interpreter is a program that reads and executes python code, it uses two modes of execution,
*Interactive mode
*Script mode
Interactive mode:
*Interactive mode as the name suggests, allow us to interact with operating system.
*When we type python statement, interpreter displays the results immediately.
*Python in interactive mode is good enough to learn, experiment or explore.
*Working in interactive mode is convenient for beginners and for testing small pieces of code.
* In interactive mode you type python programs and the interpreter displays the result :
>>>1+1
2
The Chevron>>>, is the prompt the interpreter uses to indicate that it is ready for you to enter code. If you type 1+1,the interpreter replies 2.
>>>Print ('Hello,world!')
Hello,world!
Script mode:
*In script we type python program in a file and then use interpreter to execute the content to the file.
*Script can be saved to disk for future use. Python scripts have the extension .py, meaning that the file names ends with .py
* Save the code with filename .py and run the interpreter in script mode to execute the script.
Program:
Print(1)
x = 2
Print(x)
Output:
>>> 1
2
Integrated Development Learning Environment (IDLE):
*It is graphical user interface which is completely written in python.
*It is bundled with the default implementation of the python language and also comes with optional part of the python packaging.
Features of IDLE :
* multi-window text editor with syntax highlighting.
* Auto completion with smart intendation.
* Python shell to display output with syntax highlighting.
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