MultiMethods with type annotations in 3000

[7ca45d25-3a33-4ad5-9aff-46fefca5efe6]

BPO	1004
Nosy	@gvanrossum, @pjeby, @benjaminp
Files	overloading.py

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields: ```python assignee = 'https://github.com/pjeby' closed_at = created_at = labels = ['type-feature', 'library'] title = 'MultiMethods with type annotations in 3000' updated_at = user = 'https://bugs.python.org/jasonpjason' ``` bugs.python.org fields: ```python activity = actor = 'benjamin.peterson' assignee = 'pje' closed = True closed_date = closer = 'benjamin.peterson' components = ['Library (Lib)'] creation = creator = 'jasonpjason' dependencies = [] files = ['8299'] hgrepos = [] issue_num = 1004 keywords = ['patch'] message_count = 5.0 messages = ['55224', '56728', '56729', '56730', '108479'] nosy_count = 4.0 nosy_names = ['gvanrossum', 'pje', 'jasonpjason', 'benjamin.peterson'] pr_nums = [] priority = 'low' resolution = 'postponed' stage = 'test needed' status = 'closed' superseder = None type = 'enhancement' url = 'https://bugs.python.org/issue1004' versions = ['Python 3.1'] ```

[7ca45d25-3a33-4ad5-9aff-46fefca5efe6]

This is just a port of Guido's MultiMethod decorator to 3000-style annotations. PEP-3124 needs a lot more work and even its simplest features are difficult to implement.

[gvanrossum]

Phillip, do you have any interest left in moving PEP-3124 forward?

[afcdb1a8-bc5d-4852-a2a5-71b4ae6361ae]

Interested, yes. Have time for at the moment, no. :( Seems unlikely I'll have time before 2008Q1 at this point.

[gvanrossum]

OK, that's fine.

[benjaminp]

Let's close for now.