本文整理汇总了Python中bson.son.RE_TYPE属性的典型用法代码示例。如果您正苦于以下问题：Python son.RE_TYPE属性的具体用法？Python son.RE_TYPE怎么用？Python son.RE_TYPE使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类bson.son的用法示例。
在下文中一共展示了son.RE_TYPE属性的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: from_native
# 需要导入模块: from bson import son [as 别名]
# 或者: from bson.son import RE_TYPE [as 别名]
def from_native(cls, regex):
"""Convert a Python regular expression into a ``Regex`` instance.
Note that in Python 3, a regular expression compiled from a
:class:`str` has the ``re.UNICODE`` flag set. If it is undesirable
to store this flag in a BSON regular expression, unset it first::
>>> pattern = re.compile('.*')
>>> regex = Regex.from_native(pattern)
>>> regex.flags ^= re.UNICODE
>>> db.collection.insert({'pattern': regex})
:Parameters:
- `regex`: A regular expression object from ``re.compile()``.
.. warning::
Python regular expressions use a different syntax and different
set of flags than MongoDB, which uses `PCRE`_. A regular
expression retrieved from the server may not compile in
Python, or may match a different set of strings in Python than
when used in a MongoDB query.
.. _PCRE: http://www.pcre.org/
"""
if not isinstance(regex, RE_TYPE):
raise TypeError(
"regex must be a compiled regular expression, not %s"
% type(regex))
return Regex(regex.pattern, regex.flags)