Python SkillTest - Techgig - Part-1

Question 1: 

The function that converts an string into an integer is int(string_name,[base]). The example program is  

string_var = "123" 

print(int(string_var)) #String_var in base10 int =123 

print(int(string_var,base = 8)) #String_var in base8 = 83 

  

Question 2: 

The function that returns an random item from list is random.choice(List_name). The example program is 

import random 

L = [1,2,3,4,5] 

print(random.choice(L)) #Returns random item from the list L 

  

Question 3: 

The module that supports regular expressions in Python is re 

  

Question 4: 

The program that doubles all the elements in the list is  

L = [10,20,30] 

double_list =[x*2 for x in L] 

print(double_list) #[20, 40, 60] 

  

Question 5: 

The output of print("xyz QWE".capitalize()) is Xyz qwe 

Note: capitalize() makes the first letter of the string as capital and rest as small letters 

  

Question 6: 

The output of the 

try: 

if '1' != 1: 

   raise "Error" 

else: 

   print("No Error") 

except "Error": 

print("Error") 

is 

Error as the exceptions must derive from BaseException 

Question 7: 

The value of a after the execution of below program: 

a = 50 

def fun(a): 

print("a is ",a) 

a=2 

print("Changed local a to ",a) 

fun(a) 

print("a is still",a) 

Is 50 

  

Question 8: 

The output of print("xyzqwe".center(7,'1')) is 1xyzqwe 

Note: center() function in Python fills the ‘1’ to make the length of the string as 7 

  

Question 9: 

The output of the print(sum(map(lambda x: x*2,range(1,11)))) is 110 

Note: map() forms a list of integers from 1-10 each being multiplied by 2. The sum of all those elements is 110 

  

Question 10: 

The output of program  

i = 5 

while True: 

if i %0O11 == 0: 

  break 

print(i) 

i+=1 

5 

6 

7 

8 

Note: The value of 0O11 is 9. The number 0O11 is in octal system.