python - TypeError deleting items in a nested dictionary -


i have nested dictionary following:

g = {     'a': {         1.55: {             'cd': [1.55, 12],             'lm': [1.55, 12],         },         1.45: {             'af': [1.45, 15],         },         1.6: {             'nr': [1.6, 26],         }     } }

i want search through every element, , remove if has 12 in list. i've written following code, typeerror. wondering if help.

for  e, p in g.iteritems():     p,o in g[e].iteritems():         if g[e][p][o][1]==12:             del g[e][p][o]

because o dictionary, can't use index, why receiving typeerror.

the following code want, urge think of better way can organize data.

for k1 in g.keys():     k2 in g[k1].keys():         k3 in g[k1][k2].keys():             if 12 in g[k1][k2][k3]:                 del g[k1][k2][k3]

note need use .keys() instead of .iterkeys() avoid runtimeerror: dictionary changed size during iteration. similarly, in @eric's solution .items() should used instead of .iteritems()


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