def keys(self):
"""Set-like object providing a view of index keys.
>>> index = Index('/tmp/diskcache/index')
>>> index.clear()
>>> index.update({'a': 1, 'b': 2, 'c': 3})
>>> keys_view = index.keys()
>>> 'b' in keys_view
True
:return: keys view
"""
return KeysView(self)
def viewkeys(self):
"OMD.viewkeys() -> a set-like object providing a view on OMD's keys"
return KeysView(self)
def viewkeys(self):
"od.viewkeys() -> a set-like object providing a view on od's keys"
return KeysView(self)
if PYMINOR < 7: # pragma: no cover
warn('Python < 2.7 is not officially supported.')
# abstractproperty deprecated in Python 3.3 in favor of using @property with @abstractmethod.
# Before 3.3, this silently fails to detect when an abstract property has not been overridden.
from abc import abstractproperty #:
from itertools import izip #:
# In Python 3, the collections ABCs were moved into collections.abc, which does not exist in
# Python 2. Support for importing them directly from collections is dropped in Python 3.8.
import collections as collections_abc # noqa: F401 (imported but unused)
from collections import ( # noqa: F401 (imported but unused)
Mapping, MutableMapping, KeysView, ValuesView, ItemsView)
viewkeys = lambda m: m.viewkeys() if hasattr(m, 'viewkeys') else KeysView(
m) #:
viewvalues = lambda m: m.viewvalues() if hasattr(m, 'viewvalues'
) else ValuesView(m) #:
viewitems = lambda m: m.viewitems() if hasattr(m, 'viewitems'
) else ItemsView(m) #:
iterkeys = lambda m: m.iterkeys() if hasattr(m, 'iterkeys') else iter(
m.keys()) #:
itervalues = lambda m: m.itervalues() if hasattr(
m, 'itervalues') else iter(m.values()) #:
iteritems = lambda m: m.iteritems() if hasattr(m, 'iteritems') else iter(
m.items()) #:
else:
# Assume Python 3 when not PY2, but explicitly check before showing this warning.
if PYMAJOR == 3 and PYMINOR < 5: # pragma: no cover
def keys(self):
return KeysView(self)
def keys(self):
""" Get a view object on member names """
return KeysView(self)
def keys(self):
"D.keys() -> a set-like object providing a view on D's keys"
return KeysView(self)
def keys(self) -> KeysView:
return KeysView(self)
def _keys_proxy(self, getter):
for u in self.units:
self.assertRaises(TypeError, itemgetter(0), getter(u.frz))
self.assertEqual(getter(u.frz), KeysView(u.orig))
def keys(self):
"""
Get all the keys of the configuration.
:return tuple: The keys of the configuration.
"""
return KeysView(self)