Python Viva Question
List of Python Viva Question and Answers
Q1: Name the key features of Python?
Answer: There are many key features in python and some of them are listed below:
- Concise and simple
Q2: How to check if all characters in a string are alphanumeric?
Answer: isalnum(): In python, we can use the "isalnum()" method to check whether all the characters are alphanumeric or not in a string variable.
Q3: Name the built-in types available in Python?
Answer: We have Mutable and Immutable as built-in types in python, listed as below:
a) The mutable ones include:
b) The immutable types include:
Q4: Explain the difference between a list and a tuple?
Answer: The list is mutable while the tuple is not. Tuples can be hashed as in the case of making keys for dictionaries.
Q5: What is the use of %s in python?
Answer: "%s" is a format specifier which transmutes any value into a string.
Q6: What is a pass in Python?
Answer: No-operation Python statement refers to pass.
Q7: How are files deleted in Python?
Answer: To delete a file in Python:
- Import OS module
- Use os.remove() function
Q8: What is pep 8?
Answer: Python Enhancement Proposal or pep 8 is a set of rules that specify how to format Python code for maximum readability.
Q9: What is [::-1} used for?
Answer: [::-1} reverses the order of an array or a sequence. However, the original array or the list remains unchanged.
Q10: What is Numpy?
Answer: NumPy stands for "Numerical Python".
It is used for efficient and general numeric computations on numerical data saved in arrays. E.g., sorting, indexing, reshaping, and more.
Q11: What is Scipy?
Answer: SciPy stands for "Scientific Python".
This module is a collection of tools in Python used to perform operations such as integration, differentiation, and more.
Q12: Explain how to delete a file in Python?
Answer: Using a command os.remove(file name / file path) or os.unlink(file name / file path).
Q13: How can you access a module written in Python from C?
Answer: If we need to access the logic from a module written in the programming C we can use the "PyImport_ImportModule" function with a parameter name as the module name like below:
Module = =PyImport_ImportModule("<modulename>");
Q14: What is slicing?
Answer: Slicing is a technique that allows us to retrieve only a part of a list, tuple, or string.
Q15: How do you reverse a list?
Answer: We have a list of built-in functions available with the "List" collection and from them using the reverse() method we can reverse the list.