some case i write code like these:

a,temp,b = s.partition('-')

i just need to pick the first and 3rd element. temp would never be used. is there a better way to do this?

the common case is ,a better way to pick separted element to make a new list?

for example

i want to make a new list use old list 0,1,3,7 element

code would be this:

newlist = [oldlist[0],oldlist[1],oldlist[3],oldlist[7]]

it's pretty ugly,isn't it?