Mar 4, 2015 · In case you want to update my_set from the sets in an iterable of iterables you must use my_set.update(*[s for s in iterable]), passing a generator in as in my_set.update(s for s in …

Feb 19, 2016 · Note that set.update() only gives you a union operation; the set is updated in-place by adding all elements from the argument(s) that are not already in the set. set.update() …

s.intersection_update(t) s &= t return set s keeping only elements also found in t s.intersection(t) s & t new set with elements common to s and t And so on, for all the standard relational algebra …

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 …

Apr 1, 2021 · If you don't have it in apt then you can add special repo deadsnakes Python repo for Ubuntu. And after adding repo you should have all versions in apt form 2.3 to 3.10. sudo add …

This way I can also easily add multiple sets using the same logic, which gets me an TypeError: unhashable type: 'set' if I try doing it with the .update() method. Share Improve this answer

os.environ behaves like a python dictionary, so all the common dictionary operations can be performed. In addition to the get and set operations mentioned in the other answers, we can …

Of course, if the only change is at the set creation (which used to be list creation), the code may be much more challenging to follow, having lost the useful clarity whereby using add vs …

Apr 28, 2016 · df.update(df[cols].mask(df['stream'] == 2, lambda x: x/2)) Both of the above codes do the following: mask() is even simpler to use if the value to replace is a constant (not derived …

The other day I decided that I wanted the command python to default to firing up python3 instead of python2. So I did this: $ sudo update-alternatives --install /usr/bin/python python /usr/bin/py...