July 11, 2018
Are you a Python Developer? Or looking for a job in Python Development? Or is there an interview you want to crack no matter what? Well, you don’t have to waste your time anymore! This post contains 100 Python interview questions and answers which will surely help you.
These sample questions for the interview are framed by our various experienced Python developers and experts. This will give you an idea of what can be asked in the interview related to Python development.
Python is a general-purpose programming language which is object-oriented and high-level programming mainly used for web applications and development.
Python can be used to create software, games and web application using several frameworks.
Yes, the biggest difference between Java and Python, Python is easier and simpler whereas Java uses more complex codes.
Yes, Python has interpreted language because Python programs run directly from the source code.
Guido Van Rossum has founded the Python and it was released in December 1989.
Object-oriented, imperative, functional and procedural are the programming paradigms which Python include.
Python is said to be High-Level Programming language because the language which Python uses is closer to human languages thus which makes it easier for a human to interpret.
PEP 8 is Python’s style guide which has set of rules for how to format your Python code. It is important because it shows how the Python code should be formatted.
Pickling in Python is the process of converting Python object to byte stream whereas unpicking is the reverse operation of the pickling.
To find the bugs and errors in Python code we’ll use Python Debugger tool or PDB.
PyChecker is used to find bugs in Python. Pylint is another tool which can be used to detect errors.
By using Python decorators we can alter the functions easily.
Dictionaries in Python are used for mapping of unique keys to values.
Python 2.0 and Python 3.0 are the two versions used Python programming language.
It is the principle which influences the design of the python programming.
Help () and dir () both are used to view the attributes of built-in functions in Python.
Help (): this function is used to display built-in functions as well as to provide help related to the module.
Dir (): dir () can show the methods and attributes of the class.
To exit the help window in Python programming ‘press q’.
By using help () function or dir () function we can list all the built-in functions that are available in the Python.
The Module is used to structure a Python program. Modules basically contain a set of functions which you want to use in a Python program.
We can find methods or attributes of an object by using built-in functions. Help () or dir () can be used to find the attributes of an object.
They are the built-in types of Python.
Mutable built-in types are list, sets, and dictionaries.
Immutable built-in types are strings, tuples, and numbers.
Memory isn’t freed because Python does not try to destroy every single of its object. Also, certain bits of memory are distributed by the C library which is impossible to get free.
Monkey Patching is a method by which we can extend our programming while runtime. We can modify the code or extends it while runtime.
*args and **kwargs are the special syntax used for the function to pass a variable number of arguments to a function in a Python.
Single line code: count sum(1 for line in cl for character in line if character.isupper())
[‘y‘, ‘v ‘, ‘z ‘, ‘x ‘, ‘w ‘ ]
Compilation: allows the new extensions to properly compile without any error.
Linking: After the new extensions are properly compiled without any error, the linking is done.
Output: 1 3 5 6 10
We can use different functions which can be used to modify the strings. Split(), sub(), and subn() are the functions used to modify the strings in Python.
Both are used to generate a list of number for the user to use. Thus only difference is that xrange only returns the xrange object whereas range returns the Python list of object.
Unittest in Python provides a unit testing framework. It helps in automation testing, shutdown code for tests, aggregation of tests and independence tests.
Yes, we can convert a string to a number by using built-in functions in Python. For example, ch = “4789” is a string which can be converted to an integer by using
num = int(ch)
You cannot copy most of the objects but still by using copy.copy() or copy.deepcopy() we can copy an object in Python.
Local variables are set to be local when they are declared in the function’s body. Global variables are those variables which are declared outside the function’s body which has to be used.
Yes, we can share a global variable across the modules by creating a special configuration module often called config or cfg.
Python 2.0 was released on 16 October 2000 and Python 3.0 was released on 3 December 2008.
True division and floor division are the types of division used in Python.
Python supports various platforms like Windows, Linux, MacOS or any other .NET framework.
The pass is a placeholder in a statement where nothing has to be written. It should be left blank.
Conditional statements in Python are basically a syntax used to check whether the given condition is true or not.
Slicing is a process to select a range of items from a sequence. The Sequence can be list, tuple, strings etc.
It is used to create a one-time or small function objects in Python.
Python can be used in developing games, web applications, and software.
Libraries are basically collections of functions in Python. It helps the user to perform actions without writing code.
Python is easy to learn and supports various platforms and system. It is object-Oriented Language
Python is slow as well as not a very good language for mobile development. It is impossible to create a high graphics 3D game using Python.
Newline (enter) is used to represent a statement in Python. Use of semicolon at the end of the statement is optional.
Using ‘with’ statement in Python, we get the better syntax and exceptions handling. It simplifies exception handling by cleanup tasks.
A module is a single Python file whereas package is a collection of modules.
I would prefer Python over Java to develop games. As a beginner Python can be easier as it already supports various platforms in which we can easily create games.
PyGame, Django, flask are some good frameworks which are used in Python. Pygame is used to create games and Django is used in web application.
Battlefield 2, Quora, BitTorrent, Dropbox, Instagram and many more which are developed using Python Language.
It is used in Python to simplify the programmer’s task by providing a built-in function which adds a counter to an iterable object.
Reverse () function is used to display the contents in reverse order.
List comprehension is a method of creating a list while performing some operation on the data through which it can use an iterator.
OOP stands for Object-Oriented Programming is a programming model in which the programmer defines the data structure and also the types of operations which can be applied to the data structure.
Inheritance in Python is defining a new class with no modification to an existing class. Hence it is a powerful feature which can be used in OOP.
The super function in Python is used to gain access from parent to sibling to inherited method.
Google, Mozilla, IBM, Yahoo, NASA and many others which are using Python programming language.
In Python to store values, the memory location is reserved, that reserved memory location is known as variable.
.py file is used in compilation whereas .pyc is the saved file in Python.
Yes, we can retrieve a data from a database in Python. By using MySQL or SQLite we can retrieve any data from the database.
First, we’ll use execute () query than to fetch the data we’ll use fetchone() query.
Copy.copy(x) returns a shallow copy of x whereas copy.deepcopy(x) returns a deep copy of x.
Append () is used to add an element in Python whereas extend () is used to merge multiple elements.
Yes, Python can be used for web development. Django, flask or pyramid can be used for web development.
Flask is web-framework generally used to build a small application with a simpler requirement whereas Django is used to build larger applications.
Django is a Python web framework which is used for the web development. It is a high-level and open-source framework which follows the MVT (Model View Template) pattern.
Map functions are generally used to apply functions the sequences and other iterables. It is the simple built-in used in Python.
SciPy is Python-based system of open-source software for science, engineering or mathematics whereas NumPy is a package used to compute scientific calculations in Python.
Pygame is an open-source library in Python which is used to make games and multimedia application.
The answer is
File = open (“Python.txt”,”w+”)
A package in Python is a special directory which contains a special file and multiple modules.
As it is the most versatile programming language, Python does have a great scope for building web applications.
To check the file existence in Python the most common way is to use exist() or isfile() syntax.
Multithreading in Python is a technique by which several processors can use a single set of code at different stages of execution.
Iteration can be defined as the control flow statement which allows the code to be executed repeatedly. Iteration is used for a loop which can be used to execute array.
A class can be defined as an object constructor. It consists of several attributes which are used for creating objects.
It is an open-source Python framework used for creating analytical web applications. It’s good for beginners who aren’t familiar with the web development.
The web applications like web services, web resources, and web APIs are supported and developed using web framework
Yes, there are numerous predefined functions which are available in Python. bool(), compile(), dict(), float() etc.
To take the input from the user we’ll use function input() or raw_input().
Syntax: printf “enter the number”
Python is good for both the development. As it is easy and simple, this supports multiple frameworks which can be used to create applications.
The only difference is that list is mutable type while tuple is an immutable type.
Yes, there are many 3D games which use the Python language. Battlefield, EVE online, Pydance or openRTS are some of the games which were developed using Python.
Python can be the index in positive and negative numbers. Starting from the positive index, 0 is the first index, 1 is the second index and so on. Whereas negative index starts from -1 and goes on.
Yes, there are several languages which are influenced by Python. C, C++, ABC, Dylan and many others.
We can use copy.copy() or copy.deepcopy() to make the copies of an object in Python.
Yes, the process for implementing the iterators in Python is known as generators.
Docstring is the way of documenting the Python functions, packages and classes. Docstring is basically a Python documentation string.
The syntax which is can be used to delete a file in Python:
It is a floor division type, which is used for division of two numbers. The result of the quotient shows only digits before the decimal point.
Yes, we can use Python as a scripting language. It can be used for web programming like PHP, ruby which is a scripted language.
Django, Flask or pyramid are the most popular web framework used to make a web application.
PDB is generally known as Python Debugger. It is a debugger tool which is used to find bugs and errors while runtime of a program.
This function is used to split the string into the smaller string using the defined separator.
Yes, Python is very easy to learn and is not complex as compared to other programming languages.
Flask is used to make a simple and small web application. It is independent of external libraries.
Top 100 Python Interview Questions And Answers
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