Python Interview Questions Answers And Explanations Python Programming Certification Review Pdf

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Explore Now! Python is the most desirable talent in the programming field. Python Interview Questions and Answers are presenting you to the frequently-posted questions in Python interviews. Our Python Interview Questions is an outstanding store for anyone who is in need to boost the interview preparation.

Python Programming Language

Enhance your career prospects with our Data Science Training. Enhance your career prospects with our Fullstack Development Bootcamp Training. Develop any website easily with our Front-end Development Bootcamp. Here are the top Python interview questions and answers that cover a wide base of topics associated with Python such as the use of the assert statement, the difference between Shallow copy vs deep copy, decorators in Python.

Go through these Python interview question-answer sets and land your dream job as a Python Developer, Full Stack engineer, and other top profiles. Practice these interview questions on Python with answers provided by experts and be fully prepared for your next Python interview. There are a couple of ways to check if a file exists or not. First method is use open function on a file and see if it raises any exception. If the file is indeed existing, the open function will be executed correctly.

Result will be True if file exists otherwise false. Python library consists of pathlib module. You can also check if file exists or not by using exists method in this module as follows:.

Computer languages are generally classified as statically or dynamically typed. First we have to understand the concept of variable. Moreover, compilers of these languages require prior declaration of name of variable and type of data that can be stored in it before actually assigning any value. Here, the variable x is permanently bound to int type. If data of any other type is assigned, compiler error will be reported.

In Python on the other hand, the object is stored in a randomly chosen memory location, whereas variable is just an identifier or a label referring to it. When we assign 10 to x in Python, integer object 10 is stored in memory and is labelled as x.

However, we can use same variable x as a label to another object, which may not be of same type. Unlike statically typed languages, type of variable changes dynamically as per the object whose reference has been assigned to it. Python is a dynamically typed language because type of variable depends upon type of object it is referring to. Depending upon how strict its typing rules are, a programming language is classified as strongly typed or weakly sometimes called loosely typed.

Strongly typed language checks the type of a variable before performing an operation on it. In such case, types must be made compatible by using appropriate casting techniques. A weakly typed language does not enforce type safety strictly. If an operation involves two incompatible types, one of them is coerced into other type by performing implicit casts.

PHP and JavaScript are the examples of weakly typed languages. Python is a strongly typed language because it raises TypeError if two incompatible types are involved in an operation. In above example, attempt to perform addition operation on one integer object and another string object raises TypeError as neither is implicitly converted to other. Literal representation of Python string can be done using single, double or triple quotes.

Following are the different ways in which a string object can be declared:. However, if a string contains any of the escape sequence characters, they are embedded inside the quotation marks.

The back-slash character followed by certain alphabets carry a special meaning. Some of the escape characters are:. However, in a raw string, any character followed by backslash may be used because anyway it is not going to be interpreted for its meaning! Raw strings are used in building regular expressions called regex. The re module assigns its own escape characters. Some of them are listed below:. Python library has built-in pow function.

It also has pow function in math module. What's the difference? The pow function with two arguments returns first argument raised to second argument. That means pow x,y results in x to the power y. The pow function can take three arguments. It returns modulo division of x to the power y and z. The pow function from math module only has a two argument version. Both the arguments are treated as float.

Hence the result is always float even if arguments are int. Because of the floating point representation in the memory, result of math. Sometimes, you may need a largest integer smaller than given number, or a smallest integer, that is larger than given number. This is where floor and ceil functions in math module are used.

As the name suggests, ceil stands for ceiling. It returns nearest integer greater than given number or numeric expression. The floor function on the other hand returns integer that is smaller than given number or numeric expression indicating that given number is larger than a certain fraction from the resulting integer.

The floor function shows a peculiar behaviour when the number or numeric expression is negative. In such case, the result is floored away from 0. A class has two types of attributes — instance attributes and class atributes. Each object of class may have different values for instance attributes.

However class attribute is same for each object of the class. In above example MyClass defines two instance attributes x and y. Each object has different values of x and y attributes. Value of z is same for each object.

It is accessed using name of the class. However, accessing with object also shows same value. Class has instance methods as well as class methods. Instance attributes of calling object are accessed through it. A class method is defined with classmethod decorator and received class name as argument. The class variable processed inside class method using class name as well as object as reference. It cannot access or process instance attributes.

Class can have a static method which is defined with staticmethod decorator. It takes neither a self nor a cls argument. Class attributes are accessed by providing name of class explicitly.

Python is an interpreted language. Hence the standard way to execute a Python script is issuing the following command from command terminal.

Note that input function always reads user input as string. If required it is converted to other data types. However, it is also possible to provide data to the script from outside by entering values separated by whitespace character after its name.

All the segments of command line called command line arguments separated by space are stored inside the script in the form of a special list object as defined in built-in sys module.

This special list object is called sys. Note that first element in sys. Arguments usable inside the script are sysargv[1:] Like the input function, arguments are always strings. They may have to be converted appropriately. The command line can pass variable number of arguments to the script. Usually length sys. For above script, only 2 arguments need to be passed. Hence the script should report error if number of arguments is not as per requirement.

A tuple object is a collection data type. It contains one or more items of same or different data types. Tuple is declared by literal representation using parentheses to hold comma separated objects. However, single element tuple should have additional comma in the parentheses otherwise it becomes a single object. Assigning multiple objects to tuple is called packing. Unpacking on the other hand is extracting objects in tuple into individual objects.

In above example, the tuple object contains three int objects. To unpack, three variables on left hand side of assignment operator are used.

In order to construct loop, Python language provides two keywords, while and for. The loop formed with while is a conditional loop. The body of loop keeps on getting executed till the boolean expression in while statement is true. So both types of loops have a pre-decided endpoint.

100 Essential Python Interview Questions (Edition 2019)

Python is a high-level, general-purpose and a very popular programming language. Python programming language latest Python 3 is being used in web development, Machine Learning applications, along with all cutting edge technology in Software Industry. This specially designed Python tutorial will help you learn Python Programming Language in most efficient way, with the topics from basics to advanced like Web-scraping, Django, Deep-Learning, etc. Recent Articles on Python! Skip to content.

Python Questions and Answers

We created these online Python quizzes as a fun way for you to check your learning progress and to test your skills. Each quiz takes you through a series of questions. Some of them are multiple choice, some will ask you to type in an answer, and some will require you to write actual Python code.

Python Questions and Answers has been designed with a special intention of helping students and professionals preparing for various Certification Exams and Job Interviews. This section provides a useful collection of sample Interview Questions and Multiple Choice Questions MCQs and their answers with appropriate explanations. This section provides a huge collection of Python Interview Questions with their answers hidden in a box to challenge you to have a go at them before discovering the correct answer. This section provides a great collection of Python Multiple Choice Questions MCQs on a single page along with their correct answers and explanation.

Go through these top 55 Python interview questions and land your dream job in Data Science, Machine Learning, or in the field of Python coding. Here, we have compiled the questions on topics, such as lists vs tuples, inheritance example, multithreading, important Python modules, differences between NumPy and SciPy, Tkinter GUI, Python as an OOP and functional programming language, Flask database connection, and some important sample codes. Learn and get certification in Python from Intellipaat's Python Course and excel in your career! Python is among the most popular and sought-after languages today.

Top Python Interview Questions and Answers

Test how candidates think, strategize, and problem solve so you can interview the best. The Python online test assesses candidates' knowledge of programming in the Python language and understanding of its native data structures. It's an ideal test for pre-employment screening. A good Python developer needs to be able not only to solve problems using Python as the programming language but also be familiar with Python native data structures and language constructs. This online test requires candidates to solve coding problems in Python as well as to find and fix bugs in a Python program. Our sample questions are free for companies to use on a trial plan. See more about our premium questions for paid plans below.

Python has turned the 3rd most in-demand programming language sought after by employers. Hence, we brought essential Python interview questions to acquaint you with the skills and knowledge required to succeed in a job interview. Our team which includes experienced Python programmers have made a careful selection of the questions to keep a balance between theory and practical knowledge.

We have prepared the most frequently asked Python Interview Questions and Answers that will help you to prepare for the interview questions on Python that an interviewer might ask you during your interview. In this list of Python Scripting interview questions, we have covered all commonly asked basic and advanced Python programming questions with detailed answers to help you clear the job interview easily. We have covered almost all important Python interview questions for freshers and experienced candidates to help you prepare for the upcoming interview. This detailed guide of Python coding interview questions will help you to crack your Job interview for Python Programming. What are the benefits of using Python? Python is a programming language with objects, modules, threads, exceptions and automatic memory management.

100 Data Science in Python Interview Questions and Answers for 2018

Summary – Essential Python Interview Questions

With its various libraries maturing over time to suit all data science needs, a lot of people are shifting towards Python from R. This might seem like the logical scenario. But R would still come out as the popular choice for data scientists. People are shifting towards Python but not as many as to disregard R altogether. We have highlighted the pros and cons of both these languages used in Data Science in our Python vs R article. It can be seen that many data scientists learn both languages Python and R to counter the limitations of either language. Being prepared with both languages will help in data science job interviews.

Enhance your career prospects with our Data Science Training. Enhance your career prospects with our Fullstack Development Bootcamp Training. Develop any website easily with our Front-end Development Bootcamp. Here are the top Python interview questions and answers that cover a wide base of topics associated with Python such as the use of the assert statement, the difference between Shallow copy vs deep copy, decorators in Python. Go through these Python interview question-answer sets and land your dream job as a Python Developer, Full Stack engineer, and other top profiles.

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