[New-bugs-announce] [issue17863] Bad sys.stdin assignment hands interpreter.

[Terry J. Reedy]

New submission from Terry J. Reedy:

This appears to be Python 3 specific. On 2.7.4 (Win7):
>>> import sys
>>> sys.stdin='abd'
>>>

With fresh 3.4 repository debug build, prompt never appears, ^C, ^D are ignored. Must close with window's [X] button. With fresh 3.3, get repeated [62312 refs] lines. One could guess that they are generated but suppressed in 3.4.

There is a possibility that this is specific to debug builds; I cannot currently build or run one for 2.7. However, there is no problem with Idle running (on Windows) with 3.3/3.4 pythonw-d. (In other words, see same behavior as 2.7 above.)

----------
messages: 188006
nosy: terry.reedy
priority: normal
severity: normal
stage: needs patch
status: open
title: Bad sys.stdin assignment hands interpreter.
type: behavior
versions: Python 3.3, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17863>
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