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Setting Invalid sys.stdin in interactive mode => loop forever. #55939
Description
| BPO | 11730 |
|---|---|
| Nosy | @vstinner |
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 2011-04-02.08:28:53.523>
created_at = <Date 2011-03-31.15:17:18.470>
labels = ['interpreter-core', 'type-crash']
title = 'Setting Invalid sys.stdin in interactive mode => loop forever.'
updated_at = <Date 2011-04-02.08:28:53.522>
user = 'https://bugs.python.org/ysjray'bugs.python.org fields:
activity = <Date 2011-04-02.08:28:53.522>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2011-04-02.08:28:53.523>
closer = 'vstinner'
components = ['Interpreter Core']
creation = <Date 2011-03-31.15:17:18.470>
creator = 'ysj.ray'
dependencies = []
files = []
hgrepos = []
issue_num = 11730
keywords = []
message_count = 2.0
messages = ['132678', '132789']
nosy_count = 2.0
nosy_names = ['vstinner', 'ysj.ray']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = 'needs patch'
status = 'closed'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue11730'
versions = ['Python 3.1', 'Python 3.2', 'Python 3.3']
Activity
ysjray commentedon Mar 31, 2011
Setting sys.stdin to an invalid input stream under interactive mode causes interpreter run loop forever:
Not only setting to None but also to any other invalid input stream could cause this. It's because in the beginning of PyRun_InteractiveOneFlags(), in order to get stdin encoding, the code tries to get sys.stdin and check if it's valid(not NULL, not None, has "encoding" attribute), if not, return -1 directly, then the loop in PyRun_InteractLoopFlags() continues and does the same thing. I think this should be fixed by using the Py_FileSystemDefaultEncoding instead when sys.stdin is invalid.
[-]Setting sys.stdin to an invalid input stream causes interpreter run loop forever.[/-][+]Setting Invalid sys.stdin in interactive mode => loop forever.[/+]vstinner commentedon Apr 2, 2011
I think that it is a duplicate of bpo-8070.