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 …

10 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 …

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 …

import operator from functools import reduce def zip_mappings(*mappings): keys_sets = map(set, mappings) common_keys = reduce(set.intersection, keys_sets) for key in common_keys: yield (key,) …

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 understanding how …

zipfile.zip\ dirA.zip\ a dirB.zip\ b dirC.zip\ c I want to extract all the inner zip files that are inside the zip file in directories with these names (dirA, dirB, dirC). Basically, I want to end up with the following …

Aug 10, 2010 · I read through the zipfile documentation, but couldn't understand how to unzip a file, only how to zip a file. How do I unzip all the contents of a zip file into the same directory?

Jul 13, 2021 · 0 I have some python code that has been developed using visual studio. I want to run this python code as a lambda function in aws. To do that I need to create a zip package with the code …