ValueLabs Python Software Developer Interview Questions and Answers

Q1. What is difference between List and Tuple in python?
Ans. 
List is mutable, Tuple is immutable in Python.
• List can be modified after creation, Tuple cannot be modified.

• List uses square brackets [], Tuple uses parentheses ().

• List is used for collections of items that may need to be changed, Tuple is used for collections of items that should not change.

• Example: list_example = [1, 2, 3], tuple_example = (4, 5, 6)
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Q2. Get min and max from a list without using function
Ans. 
Find min and max from a list without using function
• Iterate through the list and compare each element with current min and max values

• Update min and max values accordingly
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Q3. Explain iterator, generator and lambdas
Ans. 
Iterators are objects that allow iteration over a sequence, generators are functions that yield values one at a time, and lambdas are anonymous functions.
• Iterators are objects that implement the iterator protocol, with methods like __iter__() and __next__().

• Generators are functions that use the yield keyword to return values one at a time, pausing execution between each yield.

• Lambdas are anonymous functions defined usi...read more
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Based on list, then Selenium x path

Case studies about SAP

SAP HANA, SAP AI CORE AND LAUNCHPAD

Q1. Basics of python
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Q2. Basic of selenium theory questions
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Q1. 1.Python Core Concept 2.Sql Queries 3.Coding Question
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Q2. 4.oops concept 5.project level question
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Q1. Print words which length has even number from sentences
Ans. 
Print words with even length from sentences
• Iterate through each word in the sentence

• Check the length of the word using len() function

• If the length is even, add the word to a new list

• Return the list of words with even length
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Q2. Print string is symmetrical or not also string is palindrome or both
Ans. 
Check if a string is symmetrical, palindrome, or both.
• Check if the string is equal to its reverse to determine if it is a palindrome.

• Check if the string is equal to its mirror image to determine if it is symmetrical.

• A string that is both a palindrome and symmetrical is one that reads the same forwards and backwards.
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What are Decorators?
Why to use decorators?
What is generator and itrator why to use generator insted of itrator?

Q1. How to read a file using inbuilt function in python?
Ans. 
Use the open() function to read a file in Python.
• Use the open() function with 'r' mode to open a file for reading.

• Use the read() method to read the contents of the file.

• Close the file using the close() method after reading.
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Why should we hire you?
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Q4. Where do you see yourself in 5 years?
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Q5. What are your strengths and weaknesses?
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Q6. Tell me about yourself.
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Q7. More about yourself , education background
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