The document discusses various Python flow control statements including conditional statements like if/else statements and iteration statements like for and while loops. It provides syntax and examples of using basic and nested conditional statements as well as examples of using for loops to iterate over strings, lists, and ranges of numbers. It also covers while loops, break and continue statements, and nested loops.

3. CONDITIONALSTATEMENT
ITERATIVE STATEMENT

4. 1. EMPTY STATEMENTS
Syntax: Pass

5. 2. SIMPLE STATEMENT
EXAMPLE: >>>

6. 3. COMPOUND STATEMENT-
PATTERN:

7. STATEMENT
FLOW CONTROL
Sequence-
THE SEQUENCE CONTRUCT

8. SELECTION-
THE SELECTION CONSTRUCT

9. ITERATION (LOOPING) –
The Iteration construct

10. PROGRAM LOGIC DEVELOPMENT
TOOLS
EXAMPLE:

11. ALGORITHM

12. IF STATEMENT OF PYTHON
Syntax :
Example :
print(“num is less than 200”)

13. If else statement
Syntax:
Example:
print (“even number”)
print (“odd number”)

14. IF – ELIF STATEMENT
Syntax:

15. Example of if - elif statement:
EXAMPLE 1-
print (“batsman scored a century”)
print (“batsman scored a fifty”)
print (“batsman has neither scored a century nor
fifty”)
EXAMPLE 2-
“ is a negative number .”)
print “ is equal to zero .”)
print “ is a positive number .”

16. NESTED IF STATEMENT
FORM 1
(If inside if’s body)
if <conditional
expression>:
if <conditional
expression>:
Statement (s)
else :
Statement (s)
elif<conditional
expression>:
Statement
[statements]
else:
Statement
[statements]
FORM 2
(If inside elif’s body)
if <conditional
expression >:
Statement
[statements]
elif <conditional
expression >:
if <conditional
expression>:
Statement (s)
else :
Statement (s)
else :
Statement
[statements]
FORM 3
(If inside else’s body)
if <conditional
expression>:
Statement
[statements]
elif <conditional
expression>:
Statement
[statements]
else :
if <conditional
expression>:
Statement (s)
else :
Statement (s)
FORM 4
(If inside if’s as well as
else’s or elif’s body, i.e.,
multiple ifs inside)
if <conditional
expression>:
if <conditional
expression>:
Statement(s)
else:
Statement(s)
elif <conditional
expression>:
if <conditional
expression>:
Statement(s)
else :
Statement (s)
else :
if <conditional
expression>:
Statement (s)
else :
Statement (s)

17. EXAMPLE :
print(“A grade
print(“B grade”)
print (“C grade”)
print(“D grade”)
print(“Failing grade”)

18. RANGE () FUNCTION
Range (<lower limit >, <upper limit>)
#both limits should be integers .
EXAMPLE :

19. ITERATION / LOOPING STATEMENTS
counting loops
conditional loops

20. FOR LOOP
EXAMPLE:1
Loop through string
–
name = ‘UMIYA’
For C in name :
print (C)
Output :
U
M
I
Y
A
EXAMPLE : 2
Loop through list-
mylist = (10,20,30,40,50)
For i in mylist:
print (i)
Output :
10
20
30
40
50
EXAMPLE : 3
Sum of any 5 natural
numbers through for loop -
sum = 0
For x in range (1,6) :
num = int
(input(“Enter a num” : 3))
Sum = sum + num
print (Sum)
Output : 3
EXAMPLE : 4
Through body of
for loop-
For a in [1,4,7]:
print (a)
print (a*a)
Output :
1
1
4
16
7
49

21. WHILE LOOP
Example 1:
print the value of i as long as i
is less than 6 :
i = 1
while i < 6 :
print (i)
i += 1
Output :
1
2
3
4
5
Example 2 :
Print the squares of all
integers from 1 to 10.
i = 1
while i <= 10 :
print (i ** 2)
i += 1
Output :
1
4
9
16
25
Example 3 :
While loop with else.
while (3>4)
print (“in the loop”)
else :
print (“exiting from
while loop”)
36
49
64
81
100

22. JUMP STATEMENT – BREAK AND
CONTINUE
BREAK STATEMENT
Example :
Break
print
print (“The end”

23. CONTINUE STATEMENT
Example :
Continue
print (‘ out of loop’)

24. NESTED LOOPS
Example :
print (“ * ” ‘ ’
print

25. TEXT YOURSELF
QUES . 1
QUES. 2
QUES . 3

26. QUES. 4
QUES. 5
QUES. 6