23 In Python 3 zip returns an iterator instead and needs to be passed to a list function to get the zipped tuples:

I'm extremely new to Python so this just recently tripped me up, but it had to do more with how the example was presented and what was emphasized. What gave me problems with understanding the …

Mar 19, 2015 · zip([1,2,3],[4,5,6]) Also, note that since Python-3.5 you can use unpacking operators in a few other cases than in function callers. One of which is called in-place unpacking that lets you use …

Apr 12, 2018 · Q1- I do not understand "for x, y in zip (Class_numbers, students_per_class)". Is it like a 2d for loop? why we need the zip? Can we have 2d loop with out zip function? Q2-I am not …

11 iter(s) returns an iterator for s. [iter(s)]*n makes a list of n times the same iterator for s. So, when doing zip(*[iter(s)]*n), it extracts an item from all the three iterators from the list in order. Since all the …

Python equivalent of zip for dictionaries Asked 12 years, 9 months ago Modified 1 year, 7 months ago Viewed 67k times

In Python 3, zip now returns a lazy iterator, and this is now the most performant approach. dict(zip(keys, values)) does require the one-time global lookup each for dict and zip, but it doesn't form any …

Jun 25, 2016 · So it's the same thing as zip(*[i, i]) (it's just more convenient to write when you want to repeat something many more than 2 times). * unpacking is a common idiom in python and you can …

Dec 6, 2009 · 69 How can I create a zip archive of a directory structure in Python? In a Python script In Python 2.7+, shutil has a make_archive function.

Oct 5, 2010 · All discussion is about python 3.1.2; see Python docs for the source of my question. I know what zip does; I just don't understand why it can be implemented like this: def zip(*iterables): # zip('