Why dont Python sets preserve insertion order? - Stack Overflow Do the same efficiency improvements that led the Python team to change the dict implementation not apply to sets as well? I'm not looking for pointers to ordered-set implementations or ways to use dicts as stand-ins for sets I'm just wondering why the Python team didn't make built-in sets preserve order at the same time they did so for dicts
How to set environment variables in Python? - Stack Overflow I need to set some environment variables in the Python script and I want all the other scripts that are called from Python to see the environment variables' set If I do, os environ[ quot;DEBUSSY q
Set MultiIndex of an existing DataFrame in pandas Can I use set_idex to create a multiindex using tuples stores in one of the columns of the dataframe? Or do I have to (1) construct and assign a multiindex using pd Multiindex from_tuples(); and then (2) drop the column from the dataframe?
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?