I haven't been able to find an understandable explanation of how to actually use Python's itertools.groupby() function. What I'm trying to do is this: Take a list - in this case, the children of an

Jul 23, 2014 · I have often used itertools module in Python but it feels like cheating if I don't know the logic behind it. Here is the code to find combinations of string when order is not important. def

Feb 21, 2013 · I could not find any valid example on the internet where I can see the difference between them and why to choose one over the other.

Jan 23, 2025 · What's the fastest way of skipping tuples with a certain structure in a itertool product? Asked 1 year ago Modified 12 months ago Viewed 117 times

The itertools module indeed returns generators instead of lists, but: Generators are often more efficient than lists (especially if you are generating a large number of combinations) You can always convert …

Jul 13, 2020 · <itertools.permutations object at 0x7fee48665950> I tried using the command pip install itertools on my command prompt but I keep getting the error:

Aug 9, 2010 · From the docs: The operation of groupby () is similar to the uniq filter in Unix. It generates a break or new group every time the value of the key function changes (which is why it is usually …

bgbg, dbr: Its using a generator, so the function itself won't eat up memory. Its left to you on how to consume the iterator returned by all_perms (say you could write each iteration to disk and not worry …

Apr 19, 2013 · I'm new to programming in python (well, programming in general), so I really hope someone could help me out a little with the using the built-in itertools.combinations function. I am …

Dec 12, 2016 · How to get itertool.product to generate strings instead of list of chars and then brace each string with additional strings? Asked 9 years, 2 months ago Modified 3 years, 4 months ago …