Python interview questions for experience by Vestino technologies

1. Vestino Technologies
No:173, Tecci park, Block-A, 4th floor, Sholinganallur, Chennai - 600 119
PYTHON INTERVIEW QUESTIONS FOR EXPERIENCE
1. What is the purpose of PYTHONPATH environment variable?
2. What is the purpose of PYTHONSTARTUP environment variable?
3. What is the purpose of PYTHONCASEOK environment variable?
4. What is the purpose of PYTHONHOME environment variable?
5. What is the basic difference between Python version 2 and Python version 3?
6. What is the difference between tuples and lists in Python?
7. What is the output of print tuple + tinytuple if tuple = ( 'abcd', 786 , 2.23, 'john',
70.2 ) and tinytuple = (123, 'john')?
8. What are Python's dictionaries?
9. How will you create a dictionary in python?
10. How will you get all the keys from the dictionary?
11. Write a program to calculate number of upper case letters and number of lower
case letters?
12. Write a function to give the sum of all the numbers in list?
13. How will you randomizes the items of a list in place?
14. How will you check in a string that all characters are alphanumeric?
15. What is the difference between del() and remove() methods of list? Give
Examples.
16. What is lambda function in python?
17. Find the error in this code and what will be the output?