HCLTech Python Developer Interview Questions and Answers

Avg aptitude questions

2 easy coding questions

Q1. Array question in python
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Q2. SQL query based on condition
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Q1. Python and sql based questions
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Q1. Convert nested list into a flat list
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Q1. What are tuples in python?
Ans. 
Tuples in Python are immutable sequences of elements, similar to lists but cannot be changed once created.
• Tuples are created using parentheses ()

• Elements in a tuple can be of different data types

• Tuples are immutable, meaning their elements cannot be changed once created

• Tuples can be used as keys in dictionaries
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Q2. What are dict comprehension
Ans. 
Dict comprehension is a concise way to create dictionaries in Python using a single line of code.
• Dict comprehension uses curly braces {} to create a dictionary with key-value pairs.

• It can include conditions and loops to filter or modify the elements being added to the dictionary.

• Example: {key: value for key, value in iterable if condition}
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Q1. Basic of python and one requirement
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Q2. Closure and its uses
Ans. 
Closure is a function that retains the bindings of the free variables that exist when the function is defined.
• Closure allows a function to access and manipulate variables outside of its scope.

• It is commonly used in callback functions, event handlers, and decorators.

• Example: defining a function within another function to access the outer function's variables.
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Q1. Package discussion
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Q1. What do you want to become after upcoming 4 years
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Q2. Why should we hire you
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