In this blog , you will learn about some basic concepts of Python Programming.
INTRODUCTION TO PYTHON
Python is a strong and adaptable programming language that is extensively used for web development, data analysis, AI, and scientific computing. It was created by Guido Van Rossum at CWI(Centrum Wiskunde & Informatica) - a national Research Institute for Mathematics and Computer Science in Netherlands. For more related information regarding Introduction to Python, refer to our post:
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Installation of Python IDE
For installing python on your device, refer to: How to Install Python on Device?
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Using Python
To use Python on your Windows:
- Click on Start
- Search: IDLE Python
- Open it
Writing Programs using Different Modes
Python IDLE is an IDE where user can write codes, debug it and see the output of the program or script.
Python IDLE has two modes:
When you open IDLE, it runs in Interactive mode by default.
Interactive Mode
- A command line shell that gives immediate results for each statement
- default mode of python
- in this mode, you find '>>>' symbol to type and execute each statement
You can see that you get immediately output after you type the statement.
You can try various other statements on interactive mode for practice. Try doing:
- >>> print(2*5), Output:10
- >>>"python"*4, Output: 'pythonpythonpythonpython'
- >>>45*3, Output: 135
- >>>67-17, Output: 50
Script Mode
Script Mode enables you to write block of code or multiple lines of code known as script or Python Program. The file is saved with .py extension.
To open Script Mode:
- Open Python IDLE, Interactive mode is opened by default
- Click on File>New File(or press Ctrl +N)
- A blank file named untitled will be opened
- Write the script or code then save it as "Filename.py"
- To run it, select Run>Run Module or press F5 key
- Output will be displayed in the python shell
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| Python File Menu |
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Interactive Mode vs Script Mode
| Feature | 🟢 Interactive Mode | 🟠 Script Mode |
|---|---|---|
| How You Run It | Type directly into Python shell or terminal (>>>) |
Write code in a .py file and run it using python filename.py |
| Used For | Quick testing, calculations, trying out ideas | Writing full programs, automation, reusability |
| Execution Style | Line-by-line (immediate execution) | Entire script runs at once |
| Output | Instant—each line shows output right after execution | Output appears when you run the script |
| Best For | Learning, debugging, math operations, quick testing | Full-fledged applications, large projects |
| Saved Code | Nah fam, gone when you close the shell unless copied | Stored permanently in a .py file |
| Speed | Slower for big tasks | Faster and optimized for larger tasks |
| Editor Requirement | None, just the shell or terminal | Needs a code editor (like VS Code, PyCharm, etc.) |
| Variables Persistence | Lives as long as the session | Only exists during script execution |
| Typical Use Case | >>> print("Hello World") |
print("Hello World") in hello.py then python hello.py |
**This is part 1 , it will be continued in upcoming posts.**
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