Python Interview Questions and Answers
A high-level, interactive, and object-oriented scripting language, Python is a highly readable language that makes it ideal for beginner-level programmers. Here we can help you to prepare for the best Python interview questions. It uses English keywords and has fewer syntactical constructions as compared to other languages. Similar to PERL and PHP, Python is processed by the interpreter at runtime. Python supports the Object-Oriented style of programming, which encapsulates code within objects.
Python can be used for developing Websites, Web Apps, and Desktop GUI Applications. Here is a list of the most frequently asked Python Programming Interview Questions to learn more.
| Quick Questions about Python | |
|---|---|
| What is the latest version of Python? | 3.8.3 and released on May 13, 2020. |
| Who has invented Python? | Guido van Rossum |
| What language does Python use? | C languages |
| License | Python releases have also been GPL-compatible. |
Did you know, Python is also referred to as a “batteries included” language due to its in-depth and comprehensive standard library. Our Questions on Python have been selected from a plethora of queries to help you gain valuable insights and boost your career as a Python Developer.
Most Frequently Asked Python coding interview questions
Pass means where there is a no-operation Python statement. It is just a placeholder in a compound statement where nothing needs can be written. The continue makes the loop to resume from the next iteration.
One of the many confusing questions in Python, yes, Python does support threading, but, due to the presence of GIL multi-threading is not supported. The GIL basically does not support the running of multiple CPU cores parallelly, hence, multithreading is not supported in Python.
Here's a program to check whether a number is prime or not.
Note: Python is an interpreted bytecode-complied language. Our list of Python Coding Interview Questions will clear the basic as well as complex concepts of this high-level programming language.
num = 11
if num > 1:
for i in range(2, num//2):
if (num % i) == 0:
print(num, "is not a prime number")
break
else:
print(num, "is a prime number")
else:
print(num, "is not a prime number")
Output
11 is a prime number
You should use a try-except keyword to capture the error and use the raise keyword to display the error message of your choice. Here's an example demonstrating the same:
try:
a = int(input())
except:
raise Exception('An error is being raised in the system')
In Python, to display a null object, the None statement is used. Here's the syntax to check for if the object is null:
When a module is imported in Python, the following happens behind the scenes:
It starts with searching for mod.py in a list of directories which have been gathered from the following sources:
- The original directory from where the input script was actually being run or in the current list if the interpreter is being run interactively side by side.
- List of the directories within the PYTHONPATH environment variable, if it is actually set.
- A directory list from the installed directories would have been configured at the time of installation of Python itself.
Note: After learning the basics of Python, if you are looking for what more to learn, you can start with meta-programming, buffering protocols, iterator protocols, and much more. We have created a list of Python Interview Questions for Experienced professionals to help them use this language to solve complex problems.
The range() is an in-built function in Python, which is used to repeat an action for a specific number of times.
Let us give you an example to demonstrate how the range() function works:
sum = 0
for i in range(1, 11):
sum = sum + i
print("Sum of first 10 number :", sum)
Output:
Sum of first 10 number: 55
Here’s how to call a superclass method in python:
class Parent:
def show(self):
print("Inside Parent class")
class Child(Parent):
def display(self):
print("Inside Child class")
obj = Child()
obj.display()
obj.show()
Output
Inside Child class
Inside Parent class
Method resolution order or MRO refers to when one class inherits from multiple classes. The class that gets inherited is the parent class and the class that inherits is the child class. It also refers to the order where the base class is searched while executing the method.
This function returns to a printable presentation for the given object. It takes a single object & its syntax is repr(obj). The function repr computes all the formal string representation for the given object in Python.
- Similar to PERL and PHP, Python is processed by the interpreter at runtime. Python supports the Object-Oriented style of programming, which encapsulates code within objects.
- Derived from other languages, such as ABC, C, C++, Modula-3, SmallTalk, Algol-68, Unix shell, and other scripting languages.
- Python is copyrighted, and its source code is available under the GNU General Public License (GPL).
- Supports the development of many applications, from text processing to games.
- Works for scripting, embedded code, and compiled the code.
- Detailed