What are Dict and List comprehensions in python?
Question 1.
What are Dict and List comprehensions?
Answer.
List comprehensions and dictionary comprehensions are concise and powerful ways to create lists and dictionaries in Python. They offer a more compact and readable alternative to traditional for loops. Let's discuss one by one.
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Question 2.
What is lambda in Python? Why is it used?
Answer.
In Python, a lambda function is a small anonymous function defined using the lambda keyword. It can take any number of arguments but can only have one expression. Lambda functions are typically used when you need a simple function for a short period and you don't want to go through the process of defining a formal function using the def keyword.
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Question 3.
What is pickling and unpickling in python?
Answer.
Pickling and unpickling are the processes of converting Python objects into a byte stream or serialization and back again (deserialization), respectively. They are achieved using the built-in `pickle` module in Python.
Let's understand one by one.
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Question 4.
What are generators in Python?
Answer.
In Python, a generator is a special type of iterator that generates values on-the-fly using the `yield` keyword. Generators are functions that produce a sequence of results instead of a single value, allowing you to iterate over the generated values one at a time.
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Question 5.
What is the difference between .py and .pyc files?
Answer.
The main difference between `.py` and `.pyc` files in Python lies in their purpose and how they are used by the Python interpreter:
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