Python interpreter - interactive mode - Script mode | TAMIL | UNIT-2 CSE | P7 | #GE3151 | QT

Topic covered in this video :- Python interpreter - interactive mode - Script mode | TAMIL | UNIT - 2 CSE | P7 | #GE3151 | Quick Through PROBLEM SOLVING AND PYTHON PROGRAMMING for computer science engineering in 1st semester playlist of PROBLEM SOLVING AND PYTHON PROGRAMMING subject :- https://youtube.com/playlist?list=PLICimQMp9BrQ4PFd271SdWyDFTHsq7vii join to our telegram channel to download the pdf used in this video: https://t.me/cseengineeringnotes Join this channel to get access to perks: https://www.youtube.com/channel/UC7yxavkwDx3RfY4Utu2lycw/join Chapters: 00:00 - Topic Covered 01:04 - INTRODUCTION TO PYTHON 04:12 - Python Features 06:37 - who to install python? 09:02 - Difference between interpreter and Compiler 14:45 - Interactive mode in python 25:11 - Script mode in python 31:51 - Difference between Interactive mode and Script mode 33:45 - Integrated Development Learning Environment(IDLE) 43:32 - Next Topic GE3151 PROBLEM SOLVING AND PYTHON PROGRAMMING INTRODUCTION TO PYTHON: Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language.  It was created by Guido van Rossum during 1985- 1990. Python got its name from “Monty Python’s flying circus”. Python was released in the year 2000.  Python is interpreted: Python is processed at runtime by the interpreter. You do not need to compile your program before executing it.  Python is Interactive: You can actually sit at a Python prompt and interact with the interpreter directly to write your programs.  Python is Object-Oriented: Python supports Object-Oriented style or technique of programming that encapsulates code within objects.  Python is a Beginner's Language: Python is a great language for the beginner Level programmers and supports the development of a wide range of applications. Python Features:  Easy-to-learn: Python is clearly defined and easily readable. The structure of the program is very simple. It uses few keywords.  Easy-to-maintain: Python's source code is fairly easy-to-maintain.  Portable: Python can run on a wide variety of hardware platforms and has the same interface on all platforms.  Interpreted: Python is processed at runtime by the interpreter. So, there is no need to compile a program before executing it. You can simply run the program.  Extensible: Programmers can embed python within their C,C++,JavaScript, ActiveX, etc.  Free and Open Source: Anyone can freely distribute it, read the source code, and edit it.  High Level Language: When writing programs, programmers concentrate on solutions of the current problem, no need to worry about the low level details.  Scalable: Python provides a better structure and support for large programs than shell scripting. Python interpreter:  Interpreter: To execute a program in a high-level language by translating it one line at a time.  Compiler: To translate a program written in a high-level language into a low-level language all at once, in preparation for later execution. Python interpreter: Modes of python interpreter:  Python Interpreter is a program that reads and executes Python code. It uses 2 modes of Execution.  1. Interactive mode  2. Script mode Interactive mode:  Interactive Mode, as the name suggests, allows us to interact with OS.  When we type Python statement, interpreter displays the result(s) immediately.  Advantages:  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.  Drawback:  We cannot save the statements and have to retype all the statements once again to re-run them. In interactive mode, you type Python programs and the interpreter displays the result: Script mode:  In script mode, we type python program in a file and then use interpreter to execute the content of the file.  Scripts can be saved to disk for future use. Python scripts have the extension .py, meaning that the filename ends with.py  Save the code with filename.py and run the interpreter in script mode to execute the script Vs Integrated Development Learning Environment(IDLE):  Is a 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 indentation. Python shell to display output with syntax highlighting.