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42 lines
970 B
Python
42 lines
970 B
Python
from __future__ import absolute_import
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import re
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from uuid import UUID
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from .utils import validator
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pattern = re.compile(r'^[0-9a-fA-F]{8}-([0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}$')
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@validator
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def uuid(value):
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"""
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Return whether or not given value is a valid UUID.
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If the value is valid UUID this function returns ``True``, otherwise
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:class:`~validators.utils.ValidationFailure`.
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This validator is based on `WTForms UUID validator`_.
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.. _WTForms UUID validator:
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https://github.com/wtforms/wtforms/blob/master/wtforms/validators.py
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Examples::
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>>> uuid('2bc1c94f-0deb-43e9-92a1-4775189ec9f8')
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True
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>>> uuid('2bc1c94f 0deb-43e9-92a1-4775189ec9f8')
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ValidationFailure(func=uuid, ...)
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.. versionadded:: 0.2
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:param value: UUID value to validate
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"""
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if isinstance(value, UUID):
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return True
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try:
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return pattern.match(value)
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except TypeError:
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return False
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