The document provides a tutorial on Python programming, covering topics such as arithmetic operators, invalid identifiers, type conversion, and code errors. It includes examples and evaluations of expressions, along with specific exercises for debugging and correcting Python syntax errors. The content is structured in a question-and-answer format, aiming to reinforce learning through practice.

1. W W W. L I B W R L D . B L O G S P O T. C O M
PYTHON
REVISION
TOUR - 1

2. W W W. L I B W R L D . B L O G S P O T. C O M
1 MARK

3. W W W. L I B W R L D . B L O G S P O T. C O M
Which of the following is valid arithmetic operator in Python:
(i) // (ii)? (iii) < (iv) and
? Is not a symbol used in python
< is used to check conditions
and is used for boolean
// is used for floor division that’s why the correct answer is //

4. W W W. L I B W R L D . B L O G S P O T. C O M
Identify the valid arithmetic operator in Python from the following.
a) ? b) < c) ** d) and
It is similar to prevous question and yes the answer you chose is correct it’s
c) **

5. W W W. L I B W R L D . B L O G S P O T. C O M
Find the invalid identifier from the following
a) 2two b) two2 c)trues d) true_sl
2two starts with 2 which is numeric thus it is invalid identifier.
Others don’t violate any law so they are valid identifier

6. W W W. L I B W R L D . B L O G S P O T. C O M
Find the invalid identifier from the following
a) MyName b) True c) 2ndName d) My_Name
You should have guessed it after reading the question. Yes, the solution is (c) 2ndName

7. W W W. L I B W R L D . B L O G S P O T. C O M
Evaluate the expression:
if A=16 and B =15 then A//B is
(a) 0.0 (b) 0 (c ) 1.0 (d) 1
(d) 1 is the correct answer because A//B is floor division in which there is no decim
places and 16 is greater than 15.

8. W W W. L I B W R L D . B L O G S P O T. C O M
Write the modules that will be required to be imported to execute the following
functions in Python
(i) floor( ) (ii) randint( )
Try it……………………………………….Yes you got it right it’s math

9. W W W. L I B W R L D . B L O G S P O T. C O M
2 MARK

10. W W W. L I B W R L D . B L O G S P O T. C O M
Evaluate the following expressions:
(i) not(20>6) or (19>7)and(20==20)
(ii) 17%20
(I) The order of preferances is
NOT > AND > OR
so, check the conditions and solve it
(ii) 17%20 gives 17
Since 17 is smaller than 20. It is default setting of python.

11. W W W. L I B W R L D . B L O G S P O T. C O M
Rewrite the following code in python after removing all syntax error(s).
Underline each correction done in the code.
30=To
for K in range(0,To)
IF k%4==0:
print (K*4)
Else:
print (K+3)
To=30
for K in range(0,To):
if K%4==0:
print(K*4)
else:
print(K+3)

12. W W W. L I B W R L D . B L O G S P O T. C O M
What do you understand by the term type conversion? Explain with suitable
example.
Typecasting, or type conversion, is a method of changing an entity from one data
type to another. It is used in computer programming to ensure variables are
correctly processed by a function.
An example of typecasting is converting an integer to a string.
A = “17”
B = int(A)
print(b)
It’s output will be 17. Here we converted “17” string into 17 integer value.

13. W W W. L I B W R L D . B L O G S P O T. C O M
a) Write the names of any two data types available in Python.
b) Name the Python Library modules which need to be imported to invoke the followin
functions :
i) sqrt() ii) randint()
a) String, Integer, Boolean(any two)
b) math

14. W W W. L I B W R L D . B L O G S P O T. C O M
Evaluate the following expressions:
a) 14+13%15
b) b) 50 > 6 and 3 > 13 or not 19 > 2
a) The preferences for arithmetic operators is
+,- -- %,//,/* ----**
13%15 will give 13 since 13 is greater than 15 and the sum will be 27
b) It’s solution will be FALSE. Check previous questions for referance.

15. W W W. L I B W R L D . B L O G S P O T. C O M
Evaluate the following expressions:
a) 6 * 3 + 4**2 // 5 – 8
b) b) 10 > 5 and 7 > 12 or not 18 > 3
a) The steps taken will be in order:
4**2 which will give 16
6*3 which will give 18
16//5 which will give 3
3-8 which will give -5
18+(-5) which will give 13
So the solution is 13.
b) Do it yourself. The solution is FALSE.

16. W W W. L I B W R L D . B L O G S P O T. C O M
Rewrite the following code in Python after removing all syntax error(s).
Underline each correction done in the code.
V=80
for c in range(0,V)
If c%4=0:
print (c*4)
Elseif c%5==0:
print (c+3)
else:
print(c+10)
V=80
for c in range(0,V) :
if c%4==0:
print (c*4)
elif c%5==0:
print (c+3)
else:
print(c+10)

17. W W W. L I B W R L D . B L O G S P O T. C O M
Rewrite the following code in Python after removing all syntax error(s).
Underline each correction done in the code.
Value=30
for VAL in range(0,Value)
If val%4==0:
print (VAL*4)
Elseif val%5==0:
print (VAL+3)
else
print(VAL+10)
Try debugging(removing all errors) yourself. It is important to practice..

18. W W W. L I B W R L D . B L O G S P O T. C O M
Evaluate the following expressions:
a) 5 * 3 + 3**2 % 5 – 8
b) b) 8>5 or 10 > 12 and not 18 > 3
Solve it yourself and comment below to show your participation.

19. W W W. L I B W R L D . B L O G S P O T. C O M
Rewrite the following code in Python after removing all syntax error(s).
Underline each correction done in the code.
Num=int(“Enter a number”)
for N in range(0,Num)
If n%2=0:
print (n*4)
Elseif n%5==0:
Print (n+3)
else
print(n+10)
Do it yourself and Comment the solution below.

20. W W W. L I B W R L D . B L O G S P O T. C O M
Rewrite the following code in Python after removing all syntax error(s). Underline
each correction done in the code.
250 = Number
WHILE Number<=1000:
If Number=>750:
print(Number)
Number=Number+100
else
print(Number*2)
Number=Number+50
It is an easy question. I know that after doing the previous questions it must feel
Boring but let’s do it. Comment below your hardwork.