177 The += operator in python seems to be operating unexpectedly on lists. Can anyone tell me what is going on here?

In Python, when should you use lists and when tuples? Sometimes you don't have a choice, for example if you have "hello %s you are %s years old" % x then x must be a tuple. But if I am …

NumPy's arrays are more compact than Python lists -- a list of lists as you describe, in Python, would take at least 20 MB or so, while a NumPy 3D array with single-precision floats in the …

Mar 19, 2019 · One common application for this technique is to avoid deeply nested loops. See Avoiding nested for loops for a more specific duplicate. Similarly, this technique might be used …

Difference between del, remove, and pop on lists in Python Asked 13 years, 5 months ago Modified 1 year, 10 months ago Viewed 2.1m times

Closed 3 years ago. I'm basically looking for a python version of Combination of List<List<int>> Given a list of lists, I need a new list that gives all the possible combinations of items between …

The colon, :, is what tells Python you're giving it a slice and not a regular index. That's why the idiomatic way of making a shallow copy of lists in Python 2 is

Mar 9, 2009 · What are the differences between lists and tuples, and what are their respective advantages and disadvantages?

Sep 10, 2013 · 6 This will work for 2 or more lists; iterating through the list of lists, but using numpy addition to deal with elements of each list

Nov 1, 2011 · In fact, despite the title "Python removing duplicates in lists", it doesn't seem like OP wanted to remove duplicates from within the same list at all. Rather, it looks like OP wanted to …