New submission from Jose Antonio Martin H:

Is it possible to consider the automatic type conversion from set to frozenset 
whenever a set is declared inside a set, as the key of a Counter and as the key 
of a Dict? Tha is, the case when a set is used but a hashable object is 
requested.

Having to deal with typing frozenset every time is very uncomfortable and it is 
quite natural to work with sets of sets.

If you get an exception when trying to create a set of set then why not 
deferring such exception to the case of trying to modify an immutable set?

----------
components: Library (Lib)
messages: 184451
nosy: jamartinh
priority: normal
severity: normal
status: open
title: Automatic type conversion from set to frozenset
type: enhancement
versions: Python 2.7, Python 3.1, Python 3.2, Python 3.3, Python 3.4, Python 3.5

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue17458>
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