[New-bugs-announce] [issue30746] Reject environment variable names containing '='

[Serhiy Storchaka]

New submission from Serhiy Storchaka:

Environment variable names shouldn't contain the '=' character, because it often is used as a separator between a name and a value. There is an exception -- starting '=' on Windows is used for defining "hidden" environment variables.

Using names containing '=' in environment dict in subprocess is prohibited in issue30730. Proposed PR prohibits names containing '=' in two other cases: in os.putenv() and os.spawn*(). It fixes the part of issue4926.

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components: Extension Modules
messages: 296781
nosy: larry, loewis, serhiy.storchaka
priority: normal
severity: normal
stage: patch review
status: open
title: Reject environment variable names containing '='
type: behavior
versions: Python 2.7, Python 3.5, Python 3.6, Python 3.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30746>
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