Day 14: Mastering For Loop Control Statements in Python

Introduction :

Welcome back to my Python journey! Yesterday, I laid the foundation with control structures in python.

Today, I dove into control statements, essential building blocks of any programming language. Let's explore what I learned!

Control Statement :

FOR LOOP

c / c++ / java

for ( INITIALIZATION ; CONDITION ; UPDATION )

{

BODY

}

In PYTHON :

() -> :

{} -> INDENTATION

syntax to implement for loop in python :

for x in y :

body

#obj = 10

#obj =2.3

#obj = 4+8j

#obj = True

#obj = None obj = [10,20,3.4,"py"]

for i in obj :

print (i)

obj1 = (10,20,30,3.4, "lit")

for i in obj1:

print (i)

obj2 = {10,20,30,20, 40,50}

for i in obj2 :

print (i)

obj3 = "python"

for i in obj3 :

print (i)

obj4 = {"regno": 1, "name":"raj", "dept":"cs", "age":23}

for i in obj4 :

print (i)

RANGE CLASS / RANGE DATA TYPE / RANGE DATA STRUCTURE.

• range is a predefined class in python.

• . to get the mannuel of range class,

\>>> help ( range )

• . we can create the object of range class,

• obj = range ( stop ) start = 0 step = 1

• obj = range ( start, stop ) step = 1

• obj = range ( start, stop, step )

• . start will be included but stop will not be included

• . start , stop , step param must be int type object.

• . range class is used to create a collection of int type object only.

• . to get the values of range object we have to implement type conversion

• rangeObj = range ( 1, 11, 2 )

• print ( list ( rangeObj ) )

• . range object supports index mechanism

• . +ve index and -ve index is supported with range object.

• rangeObj [ index ]

• . range is a subscriptable object.

• . range is an immutable object.

• . range object does not support item assignment or item deletion.

• . range object is hashable type object.

ex : #Display all number from 0 to 10

for i in range (10+1):

print (i)

#Display all number from 5 to 20

for i in range (5,20+1):

print (i)

#Display all number from 1 to 20 like 1 3 5 7 9....

for i in range (1,20+1, 2):

print (i)

#wap to display all number between 2 to 200 , from that range make list which number are divided by 3 4 but not 6 with 5, from that find max number , min number & sum of all number & count to number

l =[]

for i in range (2, 200+1):

print (i, end = " ")

if i % 3 == 0 and i % 4 == 0 and i % 5 != 0:

l.append (i)

print ("\n", l, "\n", "max element=", max (l), "\n", "min element=", min (l),"\n", "sum of all element=", sum (l),"\n", "total count =", len (l))

#WAP to take a number as user input from that number find unique number

l =[]

no = int (input ("Enter a number"))

word = str (no)

for i in word :

l.append (i)

print (set(l))

#WAP to take a number as user input from starting as ‘2’ to that random number, get the numeric table

no = int (input ("Enter a number"))

for i in range (2, no+1):

print ("=========",i, "table =========\n")

for j in range (1, 10+1):

print (i ," X",j, " =", i * j )

print ("\n")

#Wap to display sum of all number between a range , from that range find factorial of all numbers

start = int (input ("Enter start value "))

stop = int (input ("Enter stop value "))

sum = 0

for i in range (start, stop+1 ) :

sum = sum + i

res = 1

print (i,"factorial=")

for j in range (1 , i+1) :

res = res * j

print (res)

print ("sum of all number =", sum)

Challenges :

1. Understanding loop iteration.

2. Handling errors.

Resources :

1. Official Python Documentation: Control Structures

2. W3Schools' Python Tutorial: Control structures

3. Scaler's Python Course: Control Flow

Goals for Tomorrow :

1. Explore something more on command_line arguments.

   Conclusion :

Day 14’s a success!

What are your favorite Python resources? Share in the comments below.

Connect with me :

GitHub: [ https://github.com/p-archana1 ]

LinkedIn : [ https://www.linkedin.com/in/archana-prusty-4aa0b827a/ ]

Join the conversation :

Share your own learning experiences or ask questions in the comments.

HAPPY LEARNING!!

THANK YOU!!