OodlesTechnologies Python Developer Interview Questions, Process, and Tips

Basic aptitude like speed time, graphs, etc and problem-solving questions of C language.

Q1. Write a Python Program in recursion
Ans. 
A Python program in recursion
• Recursion is a technique where a function calls itself to solve a problem

• The function should have a base case to stop the recursion

• The function should have a recursive case to continue the recursion

• Example: Factorial of a number using recursion

• Example: Fibonacci series using recursion
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Q2. What is Models in django
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Models in Django are Python classes that define the structure of the database tables.
• Models are used to create, read, update and delete data from the database.

• They define the fields and their types, relationships between tables, and constraints.

• Models can be created using the Django ORM (Object-Relational Mapping) or by writing SQL.

• Example: class Book(models.Model): title = models.CharField(max_length=100) author = mod...read more
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Q3. How to import views in django
Ans. 
To import views in Django, you need to create a views.py file and import it in urls.py
• Create a views.py file in your Django app directory

• Define your views in the views.py file

• Import your views in urls.py using the 'from . import views' syntax

• Map your views to URLs in urls.py using the 'path()' function
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Q4. Method overloading method overriding
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Q1. Create a function to find out if a given number is prime or not.
Ans. 
Function to determine if a number is prime or not.
• Check if the number is less than 2, return False if so

• Iterate from 2 to the square root of the number, checking for divisibility

• If no divisors found, return True (number is prime)
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Q2. Create a function to find out the least repeating consecutive character in a string.
Ans. 
Create a function to find the least repeating consecutive character in a string.
• Iterate through the string and keep track of consecutive characters and their counts

• Find the character with the least count of consecutive repetitions

• Return the character with the least count
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Q3. Give the difference between call by value and call by reference.
Ans. 
Call by value passes a copy of the variable's value, while call by reference passes a reference to the variable's memory location.
• Call by value passes a copy of the variable's value, so changes made to the parameter inside the function do not affect the original variable.

• Call by reference passes a reference to the variable's memory location, so changes made to the parameter inside the function affect the original varia...read more
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