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annotate mercurial/thirdparty/attr/exceptions.py @ 39878:3e896b51aa5d

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storageutil: move metadata parsing and packing from revlog (API) Parsing and writing of revision text metadata is likely identical across storage backends. Let's move the code out of revlog so we don't need to import the revlog module in order to use it. Differential Revision: https://phab.mercurial-scm.org/D4754
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 24 Sep 2018 14:31:31 -0700
parents 765eb17a7eb8
children e1c586b9a43c
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1 from __future__ import absolute_import, division, print_function
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4 class FrozenInstanceError(AttributeError):
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5 """
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6 A frozen/immutable instance has been attempted to be modified.
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7
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8 It mirrors the behavior of ``namedtuples`` by using the same error message
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9 and subclassing :exc:`AttributeError`.
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11 .. versionadded:: 16.1.0
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12 """
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13 msg = "can't set attribute"
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14 args = [msg]
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17 class AttrsAttributeNotFoundError(ValueError):
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18 """
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19 An ``attrs`` function couldn't find an attribute that the user asked for.
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20
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21 .. versionadded:: 16.2.0
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22 """
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25 class NotAnAttrsClassError(ValueError):
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26 """
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27 A non-``attrs`` class has been passed into an ``attrs`` function.
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29 .. versionadded:: 16.2.0
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30 """
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31
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33 class DefaultAlreadySetError(RuntimeError):
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34 """
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35 A default has been set using ``attr.ib()`` and is attempted to be reset
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36 using the decorator.
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37
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38 .. versionadded:: 17.1.0
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39 """