Jul 18, 2022 · Note: Since set elements must be hashable, and lists are considered mutable, you cannot add a list to a set. You also cannot add other sets to a set. You can however, add the elements from lists and sets as demonstrated with the .update method.

Jul 18, 2022 · a | b, or a.union(b), is the union of the two sets — i.e., a new set with all values found in either set. This is a class of operations called "set operations", which Python set types are equipped with.

Mar 4, 2015 · I guess no one mentioned about the good resource from Hackerrank. I'd like to paste how Hackerrank mentions the difference between update and add for set in python. Sets are unordered bag of unique values. A single set contains values of any immutable data type. CREATING SET

Jul 18, 2022 · Both the |= operator and set.update() method apply that operation in-place and are effectively synonymous. So, set_a |= set_b could be considered syntactic sugar for both set_a.update(set_b) and set_a = set_a | set_b (except that in the latter case, the same set_a object is reused rather than reassigned). </ahem> –

I'm trying to make a set of sets in Python. I can't figure out how to do it. Starting with the empty set xx: xx = set([]) # Now we have some other set, for example elements = set([2,3,4]) xx.add

Oct 28, 2010 · Note that the representation is just e.g. {1, 2, 3} in Python 3 whereas it was set([1, 2, 3]) in Python 2. – Resigned June 2023 Commented Nov 26, 2017 at 0:04

Jan 19, 2011 · How do you append the elements of a set to a list in Python in the most succinct way? >>> a = [1,2] &gt;&gt;&gt; b = set([3,4]) &gt;&gt;&gt; a.append(list(b)) &gt;&gt ...

Jan 2, 2014 · def f7(seq): seen = set() seen_add = seen.add return [ x for x in seq if x not in seen and not seen_add(x)] not seen_add(x) return true always irrespective of if I add duplicates or not. The only real check is if x not in seen , since if that fails, it will not perform not see_add(x) .

Oct 24, 2013 · add vs update in set operations in python. 7. Python: Append tuple to a set with tuples. 0. Adding values ...

How to add() runtime input in a set in python? 1. Adding items in set (Python) Hot Network Questions