Python Programming Unit 2 - Introduction

Iterative statements, Array, Functions

1. PROGRAMMING IN PYTHON
MCA-161A
4 Credits (3-0-2)
MCA 5
th
Sem (2020-21)
R K Dwivedi
Assistant Professor
Department of ITCA
MMMUT Gorakhpur

2. UNIT II: Control Flow and Other Programming Concepts
1.IterativeStatements:
ForLoops,WhileLoops,Break,Continue
2.Array:
LoopingArrayelements,Arraymethods
3.Functions:
LocalandGlobalVariables,
Definingandcallingthefunction,
Functionswitharguments,
Recursion

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1.IterativeStatements

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1. Iterative Statements
ForLoop

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1. Iterative Statements
ForLoop(using‘break’and‘continue’)

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1. Iterative Statements
ForLoop(using‘else’)

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1. Iterative Statements
ForLoop(NestedLoop)

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1. Iterative Statements
WhileLoop

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1. Iterative Statements
WhileLoop(using‘break’and‘continue’)

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1. Iterative Statements
WhileLoop(using‘else’)

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1. Iterative Statements
WhileLoop(NestedLoop)

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Some Important Concepts of “Range” within“Loops”
1. Iterative Statements

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Some Important Concepts of “Range” within“Loops” …continued
1. Iterative Statements

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2.Array

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2. Array (Looping Array Elements and Array Methods) …continued

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2. Array (Looping Array Elements and Array Methods)

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Some Important Concepts of “Strings”
2. Array

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3.Functions

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Defining and Calling a function
3.Function

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Passing Arguments
3. Function
If the number of arguments is unknown, add a * before the parameter name.

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Passing Arguments …continued
3. Function
You can also send arguments with the “key = value” syntax. Here, order of the arguments does not matter.
If you do not know how many “keyword arguments” will be passed in the function, add ** before the parameter name in the
function definition. Here, the function will receive a dictionary of arguments, and can access the items accordingly:

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Passing Arguments: Default Argument …continued
3. Function
If we call the function without argument, it uses the default value given duringfunction definition.

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Passing Arguments: Passing a List as an Argument …continued
3. Function
You can send any data types of argument to a function (string, number, list, dictionary etc.)

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“return” and “pass” statements
3. Function

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Local and Global Variables
3. Function

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Recursion
3. Function

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SomeProgrammingExercises

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Programming Exercise
1. Write a program to check a number Evenor Odd.

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Programming Exercise
2. Write a program to Weekdaysfor the corresponding number.

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Programming Exercise
3. Write a program for printing the Star Triangle using Nested for
loop.

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Programming Exercise
4. Write a program to check a number Primeor not.

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Programming Exercise
5. Write a program to check a number Armstrongor not.

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Programming Exercise
6. Write a program to Reversea string

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Programming Exercise
7. Write a program to check a string whether Palindromeor not.

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Programming Exercise
8. Write a program to Read & Printa Matrix.

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Programming Exercise
9. Write a program to Transposea matrix.

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Programming Exercise
10. Write a program for Matrix Multiplication in Python

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Programming Exercise
11. Write a program to print Factorial using Function

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Programming Exercise
12. Write a program to print Fibonacci Sequence using Recursion

40. Queries ?