Python Programming

Complete Unit-wise notes following BCA Semester 4 syllabus

Unit 1: Introduction to Python and Basic Programming Concepts

Learn the fundamentals of Python programming including program structure, basic elements, control flow, error handling, and the concepts of iteration and recursion.

Key Topics:

  • Overview of Programming and Structure of a Python Program
  • Elements of Python – Variables, Data Types, and Identifiers
  • Python Interpreter and Using Python as Calculator
  • Python Shell and Understanding Indentation
  • Atoms, Identifiers, and Keywords in Python
  • Comments, Literals, and Strings
  • Operators in Python (Arithmetic, Logical, Relational, etc.)
  • Input and Output Statements
  • Control Statements – Branching, Looping, and Conditional Statements
  • Exit Function and Difference between break, continue, and pass
  • Errors and Exceptions Handling
  • Iteration and Recursion Concepts
  • Conditional Execution and Alternative Execution
  • Nested Conditionals and The Return Statement
View Complete Notes
Unit 2: Control Flow, Functions, and Modules

Master conditional and looping constructs, learn to define and use functions, work with built-in and user-defined functions, and explore Python modules.

Key Topics:

  • if-else Statement and Nested if-else
  • while Loop and for Loop
  • Use of range() Function in for Loops
  • Nested Loops – Concept and Applications
  • break, continue, and pass Statements
  • Use of Compound Expressions in Conditional Constructs
  • Modules – Importing Entire Module or Selected Objects
  • Functions from math, random, time, and date Modules
  • Defining and Invoking Functions
  • Built-In Functions vs User-Defined Functions
  • Default Arguments and Passing Parameters
  • Default Parameter Values and Keyword Arguments
  • Scope of Variables (Local and Global)
  • Void Functions and Functions Returning Values
View Complete Notes
Unit 3: Strings, Lists, and Tuples

Explore string manipulation, list operations, list comprehensions, and understand the immutable nature of tuples with various operations and methods.

Key Topics:

  • Introduction to Strings and Working with Text
  • Creating Strings of Characters
  • Using Special Characters and Creating Multiline Strings
  • String Operators: +, *, in, not in, Indexing, Slicing
  • String Built-in Functions: len, capitalize, find, isalnum, isalpha, isdigit
  • String Methods: lower, upper, isupper, islower, lstrip, rstrip, isspace, istitle
  • Advanced String Methods: partition, replace, join, split, count
  • encode, decode, and swapcase Methods
  • String Constants
  • Lists – Concept of Mutable Lists
  • Creating, Initializing, and Accessing List Elements
  • List Operations: Concatenation, Repetition, Membership, Slicing
  • List Comprehensions
  • List Methods: len, insert, append, extend, sort, remove, reverse, pop
  • Tuples – Immutable Concept
  • Creating, Initializing, and Accessing Tuple Elements
  • Tuple Functions and Operations
View Complete Notes
Unit 4: Sets, Dictionaries, and Introduction to NumPy

Learn about sets and their operations, understand dictionaries with key-value pairs, and get introduced to NumPy arrays and their properties for scientific computing.

Key Topics:

  • Concept of Sets in Python
  • Creating, Initializing, and Accessing Set Elements
  • Set Operations and Methods
  • Dictionaries – Concept of Key-Value Pairs
  • Creating, Initializing, and Accessing Dictionary Elements
  • Traversing Through Dictionaries
  • Appending, Updating, and Deleting Dictionary Elements
  • Dictionary Methods and Operations
  • Introduction to NumPy Library
  • Installing NumPy
  • Array Creation and Printing Arrays
  • Array Attributes: ndim, shape, size
  • Data Type Properties: dtype, itemsize, and data
  • Basic NumPy Array Operations
View Complete Notes