In a dict of dicts, how do you emulate Perl's auto-vivification behavior? [duplicate]

Answer 1

The closest equivalent is probably something like the following:

import collections

def hasher():
  return collections.defaultdict(hasher)

hash = hasher()
hash['element1']['sub1']['subsub1'] = 'value1'
if 'subsub1' in hash['element1']['sub1']:
  print 'found value'