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Objectives
The objective of this paper is to introduce various concepts of programming to the students using Python.
Expected learning outcomes
1) Students should be able to understand the concepts of programming before actually starting to write
programs.
2) Students should be able to develop logic for Problem Solving.
3) Students should be made familiar about the basic constructs of programming such as data, operations,
conditions, loops, functions etc.
4) Students should be able to apply the problem solving skills using syntactically simple language i.e.
Python (version: 3.X or higher)
Unit I
Reasons for Python as the learner’s first programming language. Introduction to the
IDLE interpreter (shell) and its documentation. Expression evaluation: similarities and
differences compared to a calculator; expressions and operators of types int, float,
boolean. Built-in function type. Operator precedence.
Enumeration of simple and compound statements. The expression statement. The
assert statement, whose operand is a boolean expression (values true or false). The
assignment statement, dynamic binding of names to values, (type is associated with
data and not with names); automatic and implicit declaration of variable names with
the assignment statement; assigning the valueNone to a name. The del (delete)
statement. Input/output with print and input functions. A statement list (semicolonseparated list of simple statements on a single line) as a single interpreter command.
The import statement for already-defined functions and constants. The augmented
assignment statement. The built-inhelp() function.
Interactive and script modes of IDLE, running a script, restarting the shell.
The compound statement def to define functions; the role of indentation for delimiting
the body of a compound statement; calling a previously defined function. Compound
data types str, tuple and list (enclosed in quotes, parentheses and brackets,
respectively). Indexing individual elements within these types. Strings and tuples are
immutable, lists are mutable. Built-in functions min, max, sum. Interactive solution of
model problems, (e.g., finding the square root of a number or zero of a function), by
repeatedly executing the body of a loop (where the body is a statement list).
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Unit II
Advantages of functions, function parameters, formal parameters, actual parameters,
global and local variables.
The range function, the iterative for statement. The conditional statements if, if-else,
if-elif-else. The iterative statements while, while-else, for-else. The continue
statement to skip over one iteration of a loop, the break statement to exit the loop.
Nested compound statements. Dictionaries: concept of key-value pairs, techniques to
create, update and delete dictionary items. Problem-solving using compound types
and statements.
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Unit III
Anonymous functions. List comprehensions. Gentle introduction to object-oriented
programming; using the built-in dir() function, enumerate the methods of strings,
tuples, lists, dictionaries. Using these methods for problem-solving with compound
types.
15 L
Text books:
1. Magnus Lie Hetland, Beginning Python: From Novice to Professional, Apress
2. Paul Gries, et al., Practical Programming: An Introduction to Computer Science Using Python 3,
Pragmatic Bookshelf, 2/E 2014
Additional References:
1. Charles Dierbach, Introduction to Computer Science using Python, Wiley, 2013
2. Paul Gries , Jennifer Campbell, Jason Montojo, Practical Programming: An Introduction to Computer
Science Using Python 3, Pragmatic Bookshelf, 2/E 2014
3. Adesh Pandey, Programming Languages – Principles and Paradigms, Narosa, 2008