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Tue Sep 2 16:04:30 EDT 2003 · http://mail.python.org/pipermail/python-list/2003-September/200795.html

"Stefan Fleiter" <stefan.fleiter at web.de> wrote in message
news:bj2nv5$hna$1 at news.web.de...

> under Python 2.2.2:
>
>  >>> s = slice(None,5,None)
>  >>> hash(s)
> Traceback (most recent call last):
>    File "<stdin>", line 1, in ?
> TypeError: unhashable type
>  >>> s.__hash__()
> 136775584
>
> Can anybody explain this?

It looks like a bug.  Extended slices were added for use by Numerical
Python.  It may never have tried to hash them or only done so only
through the C equivavlent of s.__hash__.  Extended slicing of
sequences was, I believe, only added in 2.3.

TJR

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Difference of hash and hash()

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Showing content from http://mail.python.org/pipermail/python-list/2003-September/200795.html below:

Difference of hash and __hash__()

Difference of hash and hash()