More efficient formatting of ints and floats in json

[serhiy-storchaka]

BPO	26719
Nosy	@gvanrossum, @warsaw, @rhettinger, @amauryfa, @ncoghlan, @pitrou, @giampaolo, @ezio-melotti, @ethanfurman, @ericsnowcurrently, @serhiy-storchaka
Files	json_int_float_formatting.patch

^{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/serhiy-storchaka'
closed_at = <Date 2016-04-10.11:52:51.605>
created_at = <Date 2016-04-09.10:06:03.337>
labels = ['extension-modules', 'type-feature', 'library']
title = 'More efficient formatting of ints and floats in json'
updated_at = <Date 2016-04-10.11:52:51.604>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2016-04-10.11:52:51.604>
actor = 'serhiy.storchaka'
assignee = 'serhiy.storchaka'
closed = True
closed_date = <Date 2016-04-10.11:52:51.605>
closer = 'serhiy.storchaka'
components = ['Extension Modules', 'Library (Lib)']
creation = <Date 2016-04-09.10:06:03.337>
creator = 'serhiy.storchaka'
dependencies = []
files = ['42410']
hgrepos = []
issue_num = 26719
keywords = ['patch']
message_count = 5.0
messages = ['263077', '263080', '263100', '263102', '263132']
nosy_count = 14.0
nosy_names = ['gvanrossum', 'barry', 'rhettinger', 'amaury.forgeotdarc', 'ncoghlan', 'pitrou', 'giampaolo.rodola', 'ezio.melotti', 'eli.bendersky', 'cvrebert', 'ethan.furman', 'python-dev', 'eric.snow', 'serhiy.storchaka']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue26719'
versions = ['Python 3.5', 'Python 3.6']

[serhiy-storchaka]

Proposed patch provide more efficient solution of bpo-18264. Instead of creating new int or float object and then converting it to string, the patch directly uses functions that does int and float conversion to string.

[rhettinger]

+1 This is a nice improvement.

[gvanrossum]

Please also backport to 3.5.2...

On Saturday, April 9, 2016, Raymond Hettinger <report@bugs.python.org>
wrote:

Raymond Hettinger added the comment:

+1 This is a nice improvement.

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Python tracker <report@bugs.python.org <javascript:;>>
<http://bugs.python.org/issue26719\>

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[serhiy-storchaka]

There is similar issue with unneeded strings copying: bpo-26057.

[python-dev]

New changeset 4d4febb76864 by Serhiy Storchaka in branch '3.5':
Issue bpo-26719: More efficient formatting of ints and floats in json.
https://hg.python.org/cpython/rev/4d4febb76864

New changeset 36b15a9776ae by Serhiy Storchaka in branch 'default':
Issue bpo-26719: More efficient formatting of ints and floats in json.
https://hg.python.org/cpython/rev/36b15a9776ae