Document importlib.abc.Finder as deprecated

[brettcannon]

BPO	15640
Nosy	@warsaw, @brettcannon, @ncoghlan, @asvetlov, @ericsnowcurrently

^{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:

assignee = 'https://github.com/brettcannon'
closed_at = <Date 2012-08-17.18:08:52.825>
created_at = <Date 2012-08-13.19:47:17.435>
labels = ['docs']
title = 'Document importlib.abc.Finder as deprecated'
updated_at = <Date 2012-08-17.18:08:52.825>
user = 'https://github.com/brettcannon'

bugs.python.org fields:

activity = <Date 2012-08-17.18:08:52.825>
actor = 'brett.cannon'
assignee = 'brett.cannon'
closed = True
closed_date = <Date 2012-08-17.18:08:52.825>
closer = 'brett.cannon'
components = ['Documentation']
creation = <Date 2012-08-13.19:47:17.435>
creator = 'brett.cannon'
dependencies = []
files = []
hgrepos = []
issue_num = 15640
keywords = []
message_count = 2.0
messages = ['168138', '168454']
nosy_count = 6.0
nosy_names = ['barry', 'brett.cannon', 'ncoghlan', 'asvetlov', 'python-dev', 'eric.snow']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue15640'
versions = ['Python 3.3']

[brettcannon]

importlib.abc.Finder is no longer the proper level of abstraction for either meta path finders or path entry finders, so direct inheritance should be discouraged by documenting deprecation for the class (actual deprecation will need to be avoided as the constructor gets involved and having that error out if someone sets warnings to errors would be bad). Should probably also document as deprecated importlib.abc.PathEntryFinder.find_module().

Also need to remember to update the inheritance hierarchy now added to the docs with a note next to the class about the deprecation (along with PyLoader and PyPycLoader).

[python-dev]

New changeset 4bbb1ff4f7ea by Brett Cannon in branch 'default':
Issue bpo-15640: Document importlib.abc.Finder as deprecated.
http://hg.python.org/cpython/rev/4bbb1ff4f7ea