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| -rw-r--r-- | Doc/library/dataclasses.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Doc/library/dataclasses.rst b/Doc/library/dataclasses.rst index a5b2014..535a60c 100644 --- a/Doc/library/dataclasses.rst +++ b/Doc/library/dataclasses.rst @@ -738,7 +738,7 @@ for ``x`` when creating a class instance will share the same copy of ``x``. Because dataclasses just use normal Python class creation they also share this behavior. There is no general way for Data Classes to detect this condition. Instead, the -:func:`dataclass` decorator will raise a :exc:`TypeError` if it +:func:`dataclass` decorator will raise a :exc:`ValueError` if it detects an unhashable default parameter. The assumption is that if a value is unhashable, it is mutable. This is a partial solution, but it does protect against many common errors. |