Looking for quick help in preparing for Python interview? Then, read the top 10 Python interview questions that are essential for every developer.
In this post, you’ll see questions on Python strings, loops, threads, and sockets. Though, we’ll begin with some general questions.
It’s great that you are reading this post, and it’s even more appealing that you came to learn Python. Choosing Python for development, you certainly made the right choice as there are large no. of applications which use it. You can see it running some of the biggest Data analytics or the IOT applications.
The decision to use Python will certainly reward you.
Let’s now scroll down to the Python Q&A section.
Top 10 Python Interview Questions for Developers.
Q-1. What are different environment variables in Python? And what ‘s the use of these variables?
1.1- PYTHONPATH- It is same as the PATH variable. Python interpreter uses it to search the module files.
1.2- PYTHONSTARTUP- It stores the path of an initialization script containing Python code. It gets to run every time the Python interpreter starts.
1.3- PYTHONCASEOK− In Windows, it makes the Python find the first case-insensitive match in an import statement. You need to set it for activation.
1.4- PYTHONHOME− It’s an extra PATH variable to search modules.
Q-2. What are the commands to copy an object in Python?
2.1- <copy.copy()>- It makes the copy of a file from source to target. Its output is a shallow copy of the parameter passed.
2.2- <copy.deepcopy()>- It produces the copy of an object from the source to target. Its output is a deep copy of the parameter passed.
Q-3. What is the result of below lines of code?
str = 'Learn Python!' print str[3:8]
It’ll return the part of the string from 3rd to 5th index. The result would be <rn Py>.
Q-4. What could be the result of <print str * 2> if str = ‘Learn Python!’?
It’ll repeat the string two times. e.g. <Learn Python!Learn Python!>.
Q-5. What is a <tuple>in Python? Why is it used?
A <tuple> is a kind of sequence data type. It is same as a list. A tuple stores a list of values furcated by commas. Unlike lists, you use parentheses to confine tuples.
Q-6. How do you change a string to an int or long in Python?
6.1- <int(X [,base])>- Changes X to an integer. The default value of base is 10.
6.2- <long(Y [,base] )>- Changes Y to a long value. The default value of base is 10.
Q-7. What is a negative index? Why is it used?
7.1- <-1> is the first -ve index. It acts as the last index.
7.2- <-2> is the second -ve index. It acts as the next-to-last index.
Q-8. How do you start a thread in Python?
To run a thread in Python, you need to call the following method of the thread module.
thread.start_new_thread ( function, args[, kwargs] )
Read more about the <threads> in Python.
Q-9. How do you create a socket in Python?
9.1- <socket.socket()> creates a new socket using the below syntax.
# create a socket object simplesocket = socket.socket( socket.AF_INET, socket.SOCK_STREAM)
9.2- It takes address family, socket type and the protocol number as input.
Read more about the <sockets> in Python.
Q-10. How do you create a multi-dimensional list in Python?
You can build it by creating a 1-D list. And, then fill each of its element with a new list.
So, we’ve now come to the end of this list of top 10 python interview questions. And, we hope you could use this knowledge at the right place. Stay tuned for more updates.
Don’t just criticize your fate, learn to make it.