Python: An elegant way to delete empty lists from Python dictionary

Question

I have a dictionary as:

default = {\'a\': [\'alpha\'], \'b\': [\'beta\',\'gamma\'], \'g\': []}

I wish to eliminate the empty values as:

Answer 1

One more option is the following (without creating a new dict):

for e in [k for k,v in default.iteritems() if len(v) == 0]: default.pop(e)