本文整理匯總了Python中collections.MutableMapping.keys方法的典型用法代碼示例。如果您正苦於以下問題：Python MutableMapping.keys方法的具體用法？Python MutableMapping.keys怎麽用？Python MutableMapping.keys使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類collections.MutableMapping的用法示例。
在下文中一共展示了MutableMapping.keys方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: fromkeys
# 需要導入模塊: from collections import MutableMapping [as 別名]
# 或者: from collections.MutableMapping import keys [as 別名]
def fromkeys(cls, iterable, value=None):
'''OD.fromkeys(S[, v]) -> New ordered dictionary with keys from S.
If not specified, the value defaults to None.
'''
self = cls()
for key in iterable:
self[key] = value
return self 示例2: popitem
# 需要導入模塊: from collections import MutableMapping [as 別名]
# 或者: from collections.MutableMapping import keys [as 別名]
def popitem(self):
'Remove and return an item pair from maps[0]. Raise KeyError is maps[0] is empty.'
try:
return self.maps[0].popitem()
except KeyError:
raise KeyError('No keys found in the first mapping.') 示例3: fromkeys
# 需要導入模塊: from collections import MutableMapping [as 別名]
# 或者: from collections.MutableMapping import keys [as 別名]
def fromkeys(cls, iterable, value=None):
'''OD.fromkeys(S[, v]) -> New ordered dictionary with keys from S
and values equal to v (which defaults to None).
'''
d = cls()
for key in iterable:
d[key] = value
return d