File "/home/usr/git/adventofcode/2020/7/solution.py", line 52, in <module>
    print(bagconfigurations(rules, Bag('shiny gold')))
  File "/home/usr/git/adventofcode/2020/7/solution.py", line 42, in bagconfigurations
    cnt += bagconfigurations(rules, i.bagspec())
  File "/home/usr/git/adventofcode/2020/7/solution.py", line 42, in bagconfigurations
    cnt += bagconfigurations(rules, i.bagspec())
  File "/home/usr/git/adventofcode/2020/7/solution.py", line 42, in bagconfigurations
    cnt += bagconfigurations(rules, i.bagspec())
  [Previous line repeated 994 more times]
  File "/home/usr/git/adventofcode/2020/7/solution.py", line 40, in bagconfigurations
    if i.cancontain(bag): cnt += 1
  File "/home/usr/git/adventofcode/2020/7/solution.py", line 27, in cancontain
    if not i.color == bag.color: continue
RecursionError: maximum recursion depth exceeded in comparison