NCERT Solutions for Class 12 Computer And Communication Technology Computer Science With Python Chapter 1 Review Of Phython

Which of the following can be used as valid variable identifier(s) in Python?

• total

• 7Salute

• Que$tion

• global

Name the Python Library modules which need to be imported to invoke the following functions:
(i) ceil()
(ii) randint()

Rewrite the following code in python after removing all syntax error(s). Underline each correction done in the code.

TEXT=''GREAT
DAY''
for T in range[0,7]:
print TEXT(T)
print T+TEXT

Find and write the output of the following Python code:

STR = ['90','10','30','40']
COUNT = 3
SUM = 0
for I in [1,2,5,4]:
	S = STR[COUNT]
	SUM = float (S)+I
	print SUM
	COUNT-=1

Find and write the output of the following Python code :

class ITEM:
	def __init__(self,I=101,N='Pen',Q=10): #constructor
		self.Ino=I
		self.IName=N
		self.Qty=int(Q);

	def Buy(self,Q):
		self.Qty = self.Qty + Q

	def Sell(self,Q):
		self.Qty -= Q

	def ShowStock(self):
		print self.Ino,':',self.IName,'#',self.Qty

I1=ITEM()
I2=ITEM(100,'Eraser',100)
I3=ITEM(102,'Sharpener')
I1.Buy(10)
I2.Sell(25)
I3.Buy(75)
I3.ShowStock()
I1.ShowStock()
I2.ShowStock()

What is the possible outcome(s) executed from the following code? Also, specify the maximum and minimum values that can be assigned to variable N.

import random
SIDES=['EAST','WEST','NORTH','SOUTH'];
N=random.randint(1,3)
OUT=''
for I in range(N,1,-1):
	OUT=OUT+SIDES[I]
	print OUT

Which of the following can be used as a valid variable identifier(s) in Python?

• 4thSum

• Total

• Number#

• Data

Name the Python Library modules which need to be imported to invoke the following functions
(i) floor()
(ii) randint()

Rewrite the following code in python after removing all syntax error(s). Underline each correction done in the code.

STRING=''WELCOME
NOTE''
for S in range[0,8]:
print STRING(S)
print S+STRING

Find and write the output of the following python code:

TXT = ['20','50','30','40']
CNT = 3
TOTAL = 0
for C in [7,5,4,6]:
	T = TXT[CNT]
	TOTAL = float (T) + C
	print