[docs] [issue37110] Clarify hashability of custom class instances
Raymond Hettinger
report at bugs.python.org
Fri May 31 19:00:39 EDT 2019
Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:
The docs look correct to me:
>>> class A:
pass
>>> hash(A())
274859987
User defined classes are in-fact hashable by default. Other methods can be defined to change hashability, but they are not the default.
FWIW, it isn't the purpose of the glossary to be a language spec; rather, it is to provide a rough meaning of what the word "hashable" means. Already, the wording has exceeded its original intent. The correct place for a more detailed specification in the language reference for object.__hash__():
https://docs.python.org/3/reference/datamodel.html?highlight=__hash__#object.__hash__
Thank you for the suggestion, but we'll pass on this one.
----------
assignee: docs at python -> rhettinger
nosy: +rhettinger
resolution: -> rejected
stage: -> resolved
status: open -> closed
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<https://bugs.python.org/issue37110>
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