本文整理汇总了Python中zope.schema.interfaces.ICollection.implementedBy方法的典型用法代码示例。如果您正苦于以下问题:Python ICollection.implementedBy方法的具体用法?Python ICollection.implementedBy怎么用?Python ICollection.implementedBy使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类zope.schema.interfaces.ICollection
的用法示例。
在下文中一共展示了ICollection.implementedBy方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: _indexer_value
# 需要导入模块: from zope.schema.interfaces import ICollection [as 别名]
# 或者: from zope.schema.interfaces.ICollection import implementedBy [as 别名]
def _indexer_value(v, fieldtype=None):
"""General value normalizer for indexed values"""
# check datetime, then date, order matters:
if isinstance(v, datetime.datetime):
return int(time.mktime(v.timetuple())) # timetuple has 1s resolution
if isinstance(v, datetime.date):
return v.toordinal()
if v is None and ICollection.implementedBy(fieldtype):
# default value is empty list/set/tuple/dict respective to fieldtype
return fieldtype._type() # _type is non-tuple type for collections
elif v is None:
# avoid range query side effects of None key for index btrees
return float('inf') # sentinel value
return v