Fix Python – Loop through all nested dictionary values?

Question

Asked By – Takkun

for k, v in d.iteritems():
    if type(v) is dict:
        for t, c in v.iteritems():
            print "{0} : {1}".format(t, c)

I’m trying to loop through a dictionary and print out all key value pairs where the value is not a nested dictionary. If the value is a dictionary I want to go into it and print out its key value pairs…etc. Any help?

EDIT

How about this? It still only prints one thing.

def printDict(d):
    for k, v in d.iteritems():
        if type(v) is dict:
            printDict(v)
        else:
            print "{0} : {1}".format(k, v)

Full Test Case

Dictionary:

{u'xml': {u'config': {u'portstatus': {u'status': u'good'}, u'target': u'1'},
      u'port': u'11'}}

Result:

xml : {u'config': {u'portstatus': {u'status': u'good'}, u'target': u'1'}, u'port': u'11'}

Now we will see solution for issue: Loop through all nested dictionary values?


Answer

As said by Niklas, you need recursion, i.e. you want to define a function to print your dict, and if the value is a dict, you want to call your print function using this new dict.

Something like :

def myprint(d):
    for k, v in d.items():
        if isinstance(v, dict):
            myprint(v)
        else:
            print("{0} : {1}".format(k, v))

This question is answered By – Scharron

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