Retail Insights Software Developer Interview Questions and Answers

- write code for permutations & combination out of n numbers with k possibilities

Q1. - diff between generator & decorator - write code for recursive decorator
Ans. 
Generator produces a sequence of values while decorator adds functionality to an existing function. Recursive decorator calls itself within the decorator function.
• Generator produces values lazily while decorator enhances functionality of a function.

• Generators use 'yield' keyword to yield values one at a time.

• Decorators use '@' symbol to apply additional functionality to a function.

• Example of recursive decorator: def re...read more
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Q2. Explain generators
Ans. 
Generators are functions in Python that allow you to pause and resume execution, yielding multiple values over time.
• Generators are defined using a function with 'yield' statements instead of 'return'.

• They can be iterated over using a for loop or by calling the next() function.

• Generators are memory efficient as they do not store all values in memory at once.

• They are useful for generating large sequences of values or pro...read more
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Q3. Sample application using flask
Ans. 
A sample application using Flask, a Python web framework
• Create a virtual environment for the project

• Install Flask using pip

• Create routes and views for different pages

• Use templates to render HTML pages

• Connect to a database using Flask-SQLAlchemy
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