sudo apt update && upgrade
sudo apt install python3 python3-pip ipython3
Download preferred installer version from python official website
Launch installer, prompt Upgrade Now
set_elems = {'a', 'b', 'c'}
set_elems.update({'c', 'd'})
print(set_elems) # => {'c', 'd', 'a', 'b',}
# Adds any iterable object as list, tuple or dicts at begining of set.