'too many values to unpack', iterating over a dict. key=>string, value=>list 'too many values to unpack', iterating over a dict. key=>string, value=>list python python

'too many values to unpack', iterating over a dict. key=>string, value=>list


Python 3

for field, possible_values in fields.items():    print(field, possible_values)

Since Python 3 iteritems() is no longer supported. Use items() instead.

Python 2

You need to use something like iteritems.

for field, possible_values in fields.iteritems():    print field, possible_values

See this answer for more information on iterating through dictionaries, such as using items(), across python versions.


For Python 3.x iteritems has been removed. Use items instead.

for field, possible_values in fields.items():    print(field, possible_values)


You want to use iteritems. This returns an iterator over the dictionary, which gives you a tuple(key, value)

>>> for field, values in fields.iteritems():...     print field, values... first_names ['foo', 'bar']last_name ['gravy', 'snowman']

Your problem was that you were looping over fields, which returns the keys of the dictionary.

>>> for field in fields:...     print field... first_nameslast_name


matomo