本文整理匯總了Python中bson.son.RE_TYPE屬性的典型用法代碼示例。如果您正苦於以下問題：Python son.RE_TYPE屬性的具體用法？Python son.RE_TYPE怎麽用？Python son.RE_TYPE使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類bson.son的用法示例。
在下文中一共展示了son.RE_TYPE屬性的1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: from_native
# 需要導入模塊: from bson import son [as 別名]
# 或者: from bson.son import RE_TYPE [as 別名]
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)