Python Notes (BCA Level)
1. Introduction to Python
Python is a high-level, easy-to-learn programming language. It is widely used in web development,
data science, automation, and AI.
2. Features of Python
- Simple and readable syntax
- Interpreted language
- Platform independent
- Large standard library
3. Variables and Data Types
Variables store data. Example: x = 10
Common data types: int, float, string, boolean
4. Operators
Arithmetic: +, -, *, /
Comparison: ==, !=, >
Logical: and, or, not
5. Control Statements
if, elif, else are used for decision making.
Loops: for loop and while loop are used for repetition.
6. Functions
Functions are reusable blocks of code.
Example:
def add(a, b): return a + b
7. Lists
Lists store multiple values. Example: nums = [1,2,3]
8. Tuples
Tuples are immutable lists. Example: t = (1,2,3)
9. Dictionaries
Stores key-value pairs. Example: {'name':'Ram', 'age':20}
10. File Handling
open(), read(), write() are used to handle files.
11. Exception Handling
Used to handle errors using try and except blocks.
