How to unpack key,value pairs in python? [duplicate]

I'm trying to explore the Algorithmia image taggers in python.

client.algo("deeplearning/IllustrationTagger/0.2.5")
client.algo("deeplearning/InceptionNet/1.0.3")

But that's not quite relevant to this question, as it applies to dictionaries in general.

for dict in dictList: print(dict)

And this is the output:

//{'safe': 0.9950032234191896}

//{'questionable': 0.004409242421388626}

//{'explicit': 0.00011681715113809332}

I can access the key just fine:

for dict in dictList: for key in dict: print(key)

//safe

//questionable

//explicit

But when I'm trying to unpack both the key and the value:

for dict in dictList: for key, value in dict: print(key) print(value)

I get this error:

for key, value in dict:
ValueError: too many values to unpack (expected 2)

How can I access both the key and the value ?

EDIT: I've renamed obj and array to dict and list not to confuse with Javascript notation.

1 Answer

Like this - first:

for obj in objArray: for key in obj: value = obj[key] print(key) print(value)

Second (python 3):

for obj in objArray: for key, value in obj.items(): print(key) print(value)

For python 2 you can use for key, value in d.iteritems()