So if you want to write 2 variable as a CSV row you can put them in a tuple or list: writer.writerows((variable1,2))Īlso from itertools you can import zip_longest as a more flexible function which you can use it on iterators with different size.
In this case since zip's arguments must support iteration you can not use 2 as its argument. Returns an iterator of tuples, where the i -th tuple contains the i -th element from each of the argument sequences or iterables. Make an iterator that aggregates elements from each of the iterables. Print(timeit('zip(xrange(100), xrange(100))', number=500000)) Syntax: zip (iterables) the zip () function takes in one or more iterables as arguments. Here is a benchmark between zip in Python 2 and 3 and izip in Python 2: The module standardizes a core set of fast, memory efficient tools that are useful by. Each has been recast in a form suitable for Python. This module implements a number of iterator building blocks inspired by constructs from APL, Haskell, and SML.
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The text was updated successfully, but these errors were encountered: Sign up for free to join this conversation on GitHub. Functions creating iterators for efficient looping.
The zip implementation is almost completely copy-pasted from the old izip, just with a few names changed and pickle support added. from itertools import iziplongest as ziplongest. With no arguments, it returns an empty list. With a single sequence argument, it returns a list of 1-tuples. When there are multiple arguments which are all of the same length, zip () is similar to map () with an initial argument of None. In Python 3 the built-in zip does the same job as itertools.izip in 2.X(returns an iterator instead of a list). The returned list is truncated in length to the length of the shortest argument sequence.
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