Interview Questions

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34 questions
547 companies
49 roles
Last updated Nov 2026

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How would you write a KNN search using base python?
2 years ago
Write an asynchronous Python function that calls multiple APIs.
3 months ago
Explain how Python implements dictionaries.
3 years ago
Debug and extend a Python codebase by adding an async exponential retry mechanism with timeouts and backoff so failures are retried until success.
a year ago
Extract and clean a usable dataset from a provided company demo database using only SQL and Python.
a year ago
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Implement a decorator in Python.
3 years ago
Explain all kinds of OOP concepts in Python.
+1a year ago1 answer
How do you detect balanced parentheses in a string using Python?
3 years ago
Explain the difference between a list, tuple, set, and dictionary in Python.
3 months ago
Given an unsorted array, find duplicate elements in constant time, without using inbuilt functions of python.
2 years ago1 answer
Is it possible for a subclass in Python to inherit from multiple base classes?
How does Python manage memory, what is the GIL, and when would you choose asyncio over multiprocessing?
10 months ago
What is the difference between a tuple and a list in Python?
3 days ago
Explain what a Python context manager is and how it works.
10 months ago
Write Python code that outputs all permutations of a list of integers, and analyse its time complexity.
3 days ago
In Python, estimate by Monte Carlo the probability of getting exactly 4 heads in 6 coin flips, without using any for-loops (i.e. vectorised).
3 days ago
Explain how garbage collection works in Python, and explain generators, context managers, decorators and deep versus shallow copy.
3 days ago
In Python (pandas), what do concat, groupby and merge each do?
3 days ago
How would you draw a random sample from 10 TB of data in Python?
3 days ago
In SQL or Python, select the maximum price for each single name, then the k-th largest price for each single name.
3 days ago

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Interview Questions

How would you write a KNN search using base python?

Write an asynchronous Python function that calls multiple APIs.

Explain how Python implements dictionaries.

Debug and extend a Python codebase by adding an async exponential retry mechanism with timeouts and backoff so failures are retried until success.

Extract and clean a usable dataset from a provided company demo database using only SQL and Python.

Implement a decorator in Python.

Explain all kinds of OOP concepts in Python.

How do you detect balanced parentheses in a string using Python?

Explain the difference between a list, tuple, set, and dictionary in Python.

Given an unsorted array, find duplicate elements in constant time, without using inbuilt functions of python.

Is it possible for a subclass in Python to inherit from multiple base classes?

How does Python manage memory, what is the GIL, and when would you choose asyncio over multiprocessing?

What is the difference between a tuple and a list in Python?

Explain what a Python context manager is and how it works.

Write Python code that outputs all permutations of a list of integers, and analyse its time complexity.

In Python, estimate by Monte Carlo the probability of getting exactly 4 heads in 6 coin flips, without using any for-loops (i.e. vectorised).

Explain how garbage collection works in Python, and explain generators, context managers, decorators and deep versus shallow copy.

In Python (pandas), what do concat, groupby and merge each do?

How would you draw a random sample from 10 TB of data in Python?

In SQL or Python, select the maximum price for each single name, then the k-th largest price for each single name.

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