Q2What is __init__?
Ans: __init__ is a method or constructor in Python. This method is automatically called to allocate memory when a new object/ instance of a class is created. All classes have the __init__ method.
Here is an example of how to use it.
Output:
Web Scraping – Python Interview Questions
Ans: We will use the following code to save an locally from an URL address
Q2 What are functions in Python?
Ans: A function is a block of code which is executed only when it is called. To define a Python function, the def keyword is used.
Example:
Output: Hi, Welcome to Edureka
Q5 What are Python packages?
Ans: Python packages are namespaces containing multiple modules.
Q Write a program in Python to check if a sequence is a Palindrome.
Output:
Q3 What is the difference between range & xrange?
Ans: For the most part, xrange and range are the exact same in terms of functionality. They both provide a way to generate a list of integers for you to use, however you please. The only difference is that range returns a Python list object and x range returns an xrange object.
This means that xrange doesn’t actually generate a static list at run-time like range does. It creates the values as you need them with a special technique called yielding. This technique is used with a type of object known as generators. That means that if you have a really gigantic range you’d like to generate a list for, say one billion, xrange is the function to use.
This is especially true if you have a really memory sensitive system such as a cell phone that you are working with, as range will use as much memory as it can to create your array of integers, which can result in a Memory Error and crash your program. It’s a memory hungry beast.
Answer: Program documentation is the written description of the algorithm(s), coding method, design, testing, and proper use of a particular computer program. It is valuable for those who use the program on a day-to-day basis and also for the programmer(s) who are meant to correct, modify, and update the computer program.
With 5+ years of experience across various tech stacks such as C, C++, PHP, Python, SQL, Angular, and AWS, Vijay has a bachelors degree in computer science and a specialty in technical writing. Also, he persists in gaining knowledge of content marketing and SEO tools. He has worked with various analytics tools for over eight years. He is working with Hackr.io as an SEO manager. View all posts by the Author
Reliable documentation is a must for an earnest programmer. The availability of thorough documentation helps not only in keeping track of the various aspects of a computer application but also helps in improving the overall quality of the same. The main focus of program documentation is development, maintenance, and knowledge transfer to other developers.
Big firms like Amazon, Google, and Microsoft are always on the hunt to add programming and software development talent to join their rolls. So, in order to bag a lucrative opportunity at big names like the aforementioned, one needs to accumulate as much knowledge as possible.
That completes our list of the programming interview questions that every aspiring programmer must know, and these questions will help you to crack the technical interviews. If you find some other problems at the time of the interview which are not listed here, please comment, and we will add those in the given list. All the best!