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  • Append values to a set in Python - Stack Overflow
    Converting to lists and back is a lot of unnecessary overhead and seems to defeat the purpose of sets Consider the answer by @nyuszika7h as well as the solution in comments (ill copy here): big_set = my_sets[0] union(*my_sets[1:])
  • python - How do I add two sets? - Stack Overflow
    c = a | b Sets are unordered sequences of unique values 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
  • python - Set difference versus set subtraction - Stack Overflow
    166 set difference, set union can take any iterable as the second arg while both need to be sets to use -, there is no difference in the output
  • Are Python sets mutable? - Stack Overflow
    14 Python sets are classified into two types Mutable and immutable A set created with 'set' is mutable while the one created with 'frozenset' is immutable
  • python - Sorting a set of values - Stack Overflow
    That's because the whole point of a set, both in mathematics and in almost every programming language,* is that it's not ordered: the sets {1, 2} and {2, 1} are the same set You probably don't really want to sort those elements as strings, but as numbers (so 4 918560000 will come before 10 277200999 rather than after)
  • Python Sets vs Lists - Stack Overflow
    In Python, which data structure is more efficient speedy? Assuming that order is not important to me and I would be checking for duplicates anyway, is a Python set slower than a Python list?
  • python - How to get all subsets of a set? (powerset) - Stack Overflow
    1 Almost all of these answers use list rather than set, which felt like a bit of a cheat to me So, out of curiosity I tried to do a simple version truly on set and summarize for other "new to Python" folks I found there's a couple oddities in dealing with Python's set implementation The main surprise to me was handling empty sets
  • python - How to JSON serialize sets? - Stack Overflow
    I have a Python set that contains objects with __hash__ and __eq__ methods in order to make certain no duplicates are included in the collection I need to json encode this result set, but passing
  • python - What does the caret (^) operator do? - Stack Overflow
    Side note, seeing as Python defines this as an xor operation and the method name has "xor" in it, I would consider it a poor design choice to make that method do something not related to xor like exponentiation I think it's a good illustrative example of how it simply calls the __xor__ method, but to do that for real would be bad practice





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