What are some common methods for Python iterables?

What are some common methods for Python iterables?

In Python, common methods for iterables include map(), filter(), zip(), and enumerate(). Would you like examples?

Yes, please provide examples for each method.

Sure! For map(), you can use it to apply a function to all items in an iterable. For example:

result = list(map(lambda x: x * 2, [1, 2, 3]))  # Output: [2, 4, 6]

For filter(), it filters items based on a condition:

result = list(filter(lambda x: x > 1, [1, 2, 3]))  # Output: [2, 3]

zip() combines multiple iterables:

result = list(zip([1, 2, 3], ['a', 'b', 'c']))  # Output: [(1, 'a'), (2, 'b'), (3, 'c')]

And enumerate() adds a counter to an iterable:

result = list(enumerate(['a', 'b', 'c']))  # Output: [(0, 'a'), (1, 'b'), (2, 'c')]

That's really helpful! Can you explain how list comprehensions fit into this?

Absolutely! List comprehensions provide a concise way to create lists. They can replace map() and filter() in many cases. For example:

squared = [x ** 2 for x in range(10)]  # Output: [0, 1, 4, 9, 16, 25, 36, 49, 64, 81]

You can also add conditions:

evens = [x for x in range(10) if x % 2 == 0]  # Output: [0, 2, 4, 6, 8]