Avoid raising OverflowError if possible

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BPO	29833
Nosy	@gvanrossum, @rhettinger, @mdickinson, @vstinner, @serhiy-storchaka, @orenmn
Dependencies	bpo-28876: bool of large range raises OverflowError bpo-29816: Get rid of C limitation for shift count in right shift bpo-29819: Avoid raising OverflowError in truncate() if possible bpo-29834: Raise ValueError rather of OverflowError in PyLong_AsUnsignedLong() bpo-29839: Avoid raising OverflowError in len() when len() returns negative large value bpo-32582: chr raises OverflowError

^{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 = None
created_at = <Date 2017-03-17.08:31:01.766>
labels = ['interpreter-core', 'type-feature', '3.7']
title = 'Avoid raising OverflowError if possible'
updated_at = <Date 2018-01-20.19:11:20.564>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2018-01-20.19:11:20.564>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2017-03-17.08:31:01.766>
creator = 'serhiy.storchaka'
dependencies = ['28876', '29816', '29819', '29834', '29839', '32582']
files = []
hgrepos = []
issue_num = 29833
keywords = []
message_count = 5.0
messages = ['289747', '289795', '289821', '289826', '289835']
nosy_count = 6.0
nosy_names = ['gvanrossum', 'rhettinger', 'mark.dickinson', 'vstinner', 'serhiy.storchaka', 'Oren Milman']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue29833'
versions = ['Python 3.7']

首先查看已链接的依赖 issue，尤其是 28876、29816、29819、29834、29839 和 32582，以了解各个独立的 OverflowError 案例。要视为完成，需要处理适用的案例且不引发 OverflowError，但这个总括 issue 没有指定文件、测试或具体的实现入口。

由索引模型根据 Issue 内容生成。

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Avoid raising OverflowError if possible

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