Example for using werkzeug.datastructures.native_itermethods

gistfile1.py

@native_itermethods(['keys', 'values', 'items', 'foo'])
class AwsumDict(object):
    def keys(self):    # return iterator
    def values(self):  # return iterator
    def items(self):   # return iterator
    def foo(self):     # return iterator

d = AwsumDict()

## Python 2

# iterator
d.iterkeys()
d.itervalues()
d.iteritems()
d.iterfoo()

# list
d.keys()
d.values()
d.items()
d.foo()

## Python 3

# iterator
d.keys()
d.values()
d.items()
d.foo()