report at bugs
Oct 29, 2009, 11:26 PM
Post #3 of 6
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[issue7240] subprocess.Popen.stdout.flush fails os OS-X 10.6.1
[In reply to]
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Ned Deily <nad [at] acm> added the comment:
Philip is correct:
>>> p.stdout.flush()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
IOError: [Errno 9] Bad file descriptor
>>> p.stdout
<open file '<fdopen>', mode 'rb' at 0x100527470>
You'll get the same error on OS X (at least as far back as Python 2.3.5
on OS X 10.4) if you try to flush a disk read-only file:
>>> f = open('a.txt', 'rb')
>>> f.flush()
Traceback (most recent call last):
File "<stdin>", line 1, in ?
IOError: [Errno 9] Bad file descriptor
Note, both the OS X and Linux 2.6 fflush(3) man pages clearly state that
EBADF can be returned if the stream is not open for writing but there
seems to be a difference in behavior between the two OS's.
As this doesn't seem to be a new issue and can easily be avoided (don't
flush a read-only file), I suggest closing the issue.
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assignee: -> ronaldoussoren
components: +Macintosh
nosy: +ned.deily, ronaldoussoren
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<http://bugs.python.org/issue7240>
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