Generators to iterate over a dictionary uniformly in both Python 2 and 3

Is there a way to efficiently iterate over the values/items in a dictionary that works in both Python 2 and Python 3?

In Python 2, I can write

for x in mydict:
 for x in mydict.iterkeys():
 for x in mydict.viewkeys():
 for x in mydict.itervalues():
 for x in mydict.viewvalues():
 for x in mydict.iteritems():
 for x in mydict.viewitems():
 

and in Python 3, I have the following possibilities:

for x in mydict:
 for x in mydict.keys():
 for x in mydict.values():
 for x in mydict.items():
 

So, I can iterate over the keys with for x in mydict, and that works in both Python 2 and 3. But is there a way to iterate over values and key-value pairs ('items') that works universally? I need it for writing Python code that can be run in both Python versions.

(On a side note, other obstacles with iterators can be bypassed easily; take for example:

if sys.version_info.major<3:
     from itertools import izip as zip, imap as map
 

However, the dictionary methods cannot be redefined easily like map and zip.)

Any ideas?

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