Question

Select all true statements about Python string indexing:

Python uses indexing operator (square brackets) to select a single character from a string

Python supports indexing in both left to right and right to left

Left to right indexing starts with 0

Right to left indexing starts with -1

The return type of a string index is also a string

Select all the ways you can extract "rocks" out of s = "Python rocks":

print(s[7:])

print(s[7:20])

print(s[-5:])

print(s[-5::1])

print(s[-5::])

Given the the string, py ="pythonic", select all the python constructs that give you the letter n:

print(py[6:5])

print(py[5:6])

print(py[-3])

print(py[5])

print(py[-3:-2])

Select what Python string method can be used to indicate whether a given string is a keyword in Python?

Note: below str represent a given string.

str.isupper()

str.isalnum()

str.isascii()

str.isnumeric()

str.isidentifier()

Select the outcome of the following lines of code:

py ="python"

print(py[len(py)-1])

an error

p

n

t

h

Select all Python operators that can be operated upon string(s):

+

*

==

<=

is

Answer 1

Dear Student ,

As per the requirement submitted above , kindly find the below solution.

Question :

Answer :

Python uses indexing operator (square brackets) to select a single character from a string

Python supports indexing in both left to right and right to left

Left to right indexing starts with 0

Right to left indexing starts with -1

Explanation :All above statements in python are true.The return type of a string index is also a index number hence it is false.

******************************

Question :

Answer :

print(s[7:])

print(s[7:20])

print(s[-5:])

print(s[-5::1])

print(s[-5::])

Explanation :All above are correct way of extract "rocks" out of s = "Python rocks".Below screen shows the details.

main.py 1 s "Python rocks" 2 print (s[7:]) 4 print (s[7:20]) 5 6 print (s[-5:]) 7 8 print (s-5::1]) 10 print (s[-5::]) rocks rocks rocks rocks rocks .. .Program finished with exit code 0 Press ENTER to exit console-

***************************

Question :

Answer :

print(py[5:6])

print(py[-3])

print(py[5])

print(py[-3:-2])

Explanation :All above are correct way of getting n out of given string in python.Below screen gives more details

main.py 1 py "pythonic" 2 print (py[6:5]) 4 print (pyI5:6]) print (py[-3]) print (py [5]) print(py[-3:-2]) 7 8 10 . .Program finished with exit code 0 Press ENTER to exit console.

***************************

Question :

Answer :None of the above

Explanation :In given option none of the method is used to find the given string is keyword or not.Below are details

• isupper() :returns if all characters are uppercase characters
• isascii():It returns a string containing printable representation of an object.
• isalnum() :Checks Alphanumeric Character
• isnumeric() :Checks Numeric Characters
• isidentifier():Checks for Valid Identifier

***************************

Question :

Answer :n

Explanation :Given code will return n.Below is the screen

main.py 1 py "python" 2 print(pye(py)-1]) 4 . .Program finished with exit code 0 Press ENTER to exit console

***************************

Question :

Answer :

+

==

<=

is

Explanation :Below screen gives details

main.py a-"python" 2 b-"demo" 3 print (a+b) 4 print (a-b) 5 print (a<-b) 6 print (a is b) ythondemo False False False . . .Program finished with exit code 0 Press ENTER to exit console.lI

***************************

NOTE : PLEASE FEEL FREE TO PROVIDE FEEDBACK ABOUT THE SOLUTION.