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

Mar 19, 2015 · In this case, since the zip function accepts a list of iterables in order to return their aligned columns, zip(*p) passes all the items inside the p as arguments to zip function: Therefore, in this case, zip(*p) is equal to: 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 ...

From Python 3.2 onwards it has been possible to use the ZipFile as a context manager: from zipfile import ZipFile with ZipFile('images.zip') as zf: for file in zf.namelist(): if not file.endswith('.png'): # optional filtering by filetype continue with zf.open(file) as f: image = pygame.image.load(f, namehint=file)

The other great answers and comments explain well the roles of argument unpacking and zip().. As Ignacio and ujukatzel say, you pass to zip() three references to the same iterator and zip() makes 3-tuples of the integers—in order—from each reference to the iterator:

In Python 2, zip returns a list, to avoid creating an unnecessary list, use izip instead (aliased to zip can reduce code changes when you move to Python 3). from itertools import izip as zip So that is still (2.7):

Apr 4, 2019 · Instead of using Python't built-in zipfile, you can use stream-zip (full disclosure: written by me). If you have an iterable of bytes, my_data_iter say, you can get an iterable of a zip file using its stream_zip function:

Aug 10, 2010 · Unzip nested zip files in python-1. To unzip a file. 0. zip a file in python. 1.

Feb 26, 2022 · I have been trying to make a python script to zip a file with the zipfile module. Although the text file is made into a zip file, It doesn't seem to be compressing it; testtext.txt is 1024KB whilst testtext.zip (The code's creation) is also equal to 1024KB.

Jul 5, 2013 · You could use the zipapp module from the standard library to create executable Python zip archives. It is available from Python 3.5 onwards. One way to create a bundle is to add a top-level file named __main__.py, which will be the script that Python runs when the zip executable archive is executed. Suppose your directory structure is now like ...

Feb 14, 2011 · The itertools library provides "iterators" for common Python functions. From the itertools docs, "Like zip() except that it returns an iterator instead of a list." The I in izip() means "iterator". Python iterators are a "lazy loaded" sequence that saves memory over regular in …