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Python Interview Questions & Answers

1. What is Python?

Python is an high level, translated, intuitive and object-situated scripting language. Python is intended to be exceedingly decipherable. It uses English key phrases often where as different language use accentuation, and it has less linguistic developments than different languages.

2. What are the key features of Python?

What type of language is python? Programming or scripting?
How is Python an interpreted language?
What is pep 8?
How is memory managed in Python?
What is namespace in Python?
What are python modules? Name some commonly used built-in modules in Python?
What are local variables and global variables in Python?
How to install Python on Windows and set path variable?
What is the difference between Python Arrays and lists?
What are functions in Python?
What is __init__?
What is a lambda function?
What is self in Python?
How can you generate random numbers in Python?
What is the difference between range & xrange?
How do you write comments in python?
What is pickling and unpickling?
What are the generators in python?
How will you capitalize the first letter of string?
How will you convert a string to all lowercase?
How to comment multiple lines in python?
What are docstrings in Python?
What is the usage of help() and dir() function in Python?
What is a dictionary in Python?
How can the ternary operators be used in python?
What are negative indexes and why are they used?
How can files be deleted in Python?
What are the built-in types of python?
What advantages do NumPy arrays offer over (nested) Python lists?
How to add values to a python array?
How to remove values to a python array?
Does Python have OOps concepts?
How is Multithreading achieved in Python?
What is the process of compilation and linking in python?
What are Python libraries? Name a few of them.
How are classes created in Python?
What is the purpose of PYTHONSTARTUP environment variable?
What is the purpose of PYTHONCASEOK environment variable?
What is the purpose of PYTHONHOME environment variable?
How will you create a dictionary in python?
How will you get all the keys from the dictionary?
How will you get all the values from the dictionary?
How will you convert a string to an int in python?
Write a program in Python to reverse a string without using inbuilt function reverse string?
Name the tools which python uses to find bugs (if any).
Name the python Library used for Machine learning.