Top 22 Python Interview Questions and Answers on String ? String manipulation with Python

 

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12. How to define a multiline string in python?

Ans :
str = """This is 
a multiline
string"""

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13.  Let str = "string", then what is the output for print(mystr[-2:-1]) # 'n'

Ans: answer is "n"

14. How to concatenate string in Python?
    
Ans: we can do it in below three ways:

x = "Test "
y = "Automation"
z = x + y
print(x + y)
print("Test " + "Automation")
print(z)

15. What are the python frameworks you have used for Test Automation?

Ans: Click Here For Answer

16. What is the output for below :

print("2.2" + "4.4") 

Ans: 2.24.4

17. What is the use of format() in python?

We can use the format() method after strings which are used to insert specified values inside strings.

We use “{}” to insert specified values.

There are three ways to insert values.

1. {valuename}

2. {valueindex}

3. {}

Example

print("Name:{name} and age:{age}".format(name=“Sid”, age=31))

print("Name:{0} and age:{1}".format(“Sid”, 31))

print("Name:{1} and age:{0}".format(“Sid”, 31))

print("Name:{} and age:{}".format(“Sid”, 31))

Output

Name:Sid and age:31

Name:Sid and age:31

Name:31 and age:Sid

Name:Sid and age:31

18.  What re the rules of variable naming in python?

Ans: Click Here For All The Rules

19. Correct the below string:

print(“He is "A" genius”)

Ans: This will give syntax error, If we use backslash “\” followed by the character like ” then the problem will get resolved.

print(“He is \"A\" genius”)

20. How to replace Genius with fool in below string?
 Str = "He is a genius"

Ans: print(Str.replace("genius","fool")

21. What are the different environment variables in Python?

Ans: 

• PYTHONPATH [locate the module files imported into a program]
• PYTHONSTARTUP [contains the path of an initialization file containing Python source code]
• PYTHONCASEOK [used in windows to instruct Python to find the first case-insensitive match in an import statement]
• PYTHONHOME [it is an alternative module search path]

22. How to check number is prime or not in python?

Ans: num= 7

count=0
if num>1:
    for i in range(1,num+1):
        if(num%i)==0:
            count=count+1
    if count==2:
        print("Number is prime")
    else:
        print("Number is not prime"

Important Escape Characters

---

Escape Character	Name
\’	Single Quote
\\	Backslash
\n	New Line
\t	Tab
\b	Backspace
\”	Double Quote

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