Python programming notes.docx

PYTHON PROGRAMMING III YEAR/II SEM

PYTHON PROGRAMMING
LECTURE NOTES



DEPARTMENT OF
COMPUTER SCIENCE AND
ENGINEERING



MALLA REDDY COLLEGE OF ENGINEERING &
TECHNOLOGY WITH CORRECT ANSWERS 2026/2027

,PYTHON PROGRAMMING III YEAR/II SEM
SYLLA US D




MALLA REDDY COLLEGE OF ENGINEERING AND TECHNOLOGY

III Year . Tech CSE -II SEM
D L T/P/D C
3 -/-/- 3
OPEN ELECTIVE III
(R17A0554) PYTHON PROGRAMMING
O JECTIVES:
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 To read and write simple Python programs.
 To develop Python programs with conditionals and loops.
 To define Python functions and call them.
 To use Python data structures –- lists, tuples, dictionaries.
 To do input/output with files in Python.
UNIT I
INTRODUCTION DATA, EXPRESSIONS, STATEMENTS
Introduction to Python and installation, data types: Int, float, oolean, string, and list; varia les,
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expressions, statements, precedence of operators, comments; modules, functions--- function and its
use, flow of execution, parameters and arguments.

UNIT II
CONTROL FLOW, LOOPS
Conditionals: oolean values and operators, conditional (if), alternative (if-else), chained conditional
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(if-elif-else); Iteration: while, for, reak, continue.
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UNIT III
FUNCTIONS, ARRAYS
Fruitful functions: return values, parameters, local and glo al scope, function composition,
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recursion; Strings: string slices, immuta ility, string functions and methods, string module; Python
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arrays, Access the Elements of an Array, array methods.

UNIT IV
LISTS, TUPLES, DICTIONARIES
Lists: list operations, list slices, list methods, list loop, muta ility, aliasing, cloning lists, list
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parameters, list comprehension; Tuples: tuple assignment, tuple as return value, tuple comprehension;
Dictionaries: operations and methods, comprehension;

UNIT V
FILES, EXCEPTIONS, MODULES, PACKAGES
Files and exception: text files, reading and writing files, command line arguments, errors and
exceptions, handling exceptions, modules (datetime, time, OS , calendar, math module), Explore
packages.

,PYTHON PROGRAMMING III YEAR/II SEM
OUTCOMES: Upon completion of the course, students will e a le to
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 Read, write, execute y hand simple Python programs.
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 Structure simple Python programs for solving pro lems.
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 Decompose a Python program into functions.
 Represent compound data using Python lists, tuples, dictionaries.
 Read and write data from/to files in Python Programs


TEXT OOKS
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1. Allen . Downey, ``Think Python: How to Think Like a Computer Scientist‘‘, 2nd edition,
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Updated for Python 3, Shroff/O‘Reilly Pu lishers, 2016.
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2. R. Nageswara Rao, “Core Python Programming”, dreamtech
3. Python Programming: A Modern Approach, Vamsi Kurama, Pearson

REFERENCE OOKS: D



1. Core Python Programming, W.Chun, Pearson.
2. Introduction to Python, Kenneth A. Lam ert, Cengage
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3. Learning Python, Mark Lutz, Orielly

, PYTHON PROGRAMMING III YEAR/II SEM
INDEX
UNIT TOPIC PAGE NO
INTRODUCTION DATA,
EXPRESSIONS, STATEMENTS 1
Introduction to Python and installation 1
data types: Int 6
float 7
Doolean 8
string 8
List 10
I varia les
D 11
expressions 13
statements 16
precedence of operators 17
comments 18
modules 19
functions----------function and its use 20
flow of execution 21
parameters and arguments 26
CONTROL FLOW, LOOPS 35
Conditionals: oolean values and
D
35
operators,
II conditional (if) 36
alternative (if-else) 37
chained conditional (if-elif-else) 39
Iteration: while, for, reak, continue.
D 41
FUNCTIONS, ARRAYS 55
Fruitful functions: return values 55
parameters 57
local and glo al scope
D 59
function composition 62
III recursion 63
Strings: string slices 64
immuta ility
D 66
string functions and methods 67
string module 72
Python arrays 73
Access the Elements of an Array 75
Array methods 76
LISTS, TUPLES, DICTIONARIES 78