Get rid of tp_getattro in ossaudiodev.oss_audio_device

[serhiy-storchaka]

BPO	34740
Nosy	@serhiy-storchaka
PRs	bpo-34740: Get rid of tp_getattro in ossaudiodev.oss_audio_device. #9421

^{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 = None
closed_at = <Date 2018-10-04.07:43:24.991>
created_at = <Date 2018-09-19.14:31:29.059>
labels = ['extension-modules', 'type-feature', '3.8']
title = 'Get rid of tp_getattro in ossaudiodev.oss_audio_device'
updated_at = <Date 2018-10-04.07:43:24.990>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2018-10-04.07:43:24.990>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2018-10-04.07:43:24.991>
closer = 'serhiy.storchaka'
components = ['Extension Modules']
creation = <Date 2018-09-19.14:31:29.059>
creator = 'serhiy.storchaka'
dependencies = []
files = []
hgrepos = []
issue_num = 34740
keywords = ['patch']
message_count = 2.0
messages = ['325768', '327041']
nosy_count = 1.0
nosy_names = ['serhiy.storchaka']
pr_nums = ['9421']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue34740'
versions = ['Python 3.8']

[serhiy-storchaka]

Currently ossaudiodev.oss_audio_device has the tp_getattro slot for handling some attributes. The proposed PR replaces it with tp_members and tp_getset.

Benefits: constant time access, names of these attributes are added to the result of dir() and help(), better structured code.

[serhiy-storchaka]

New changeset 5f5a778 by Serhiy Storchaka in branch 'master':
bpo-34740: Get rid of tp_getattro in ossaudiodev.oss_audio_device. (GH-9421)
5f5a778