python RuntimeError: dictionary changed size during iteration

Question

I have obj like this

{hello: \'world\', \"foo.0.bar\": v1, \"foo.0.name\": v2, \"foo.1.bar\": v3}

It should be expand to

{         


        

Answer 1

You might want to copy your keys in a list and iterate over your dict using the latter, eg:

def expand(obj):
    keys = obj.keys()
    for k in keys:
        expandField(obj, k, v)

I let you analyse if the resulting behavior suits your expected results.