Message 146841 - Python tracker

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In-reply-to
Author	sbt
Recipients	sbt
Date	2011年11月02日.15:08:54
SpamBayes Score	9.8640725e-05
Marked as misclassified	No
Message-id	<1320246535.71.0.465783773129.issue13322@psf.upfronthosting.co.za>

Content
According to the the documentation, BufferedReader.read() and BufferedWriter.write() should raise io.BlockingIOError if the file is in non-blocking mode and the operation cannot succeed without blocking. However, BufferedReader.read() returns None (which is what RawIOBase.read() is documented as doing), and BufferedWriter.write() raises IOError with a message like raw write() returned invalid length -1 (should have been between 0 and 5904) I tested this on Linux with Python 2.6, 2.7 and 3.x. Attached is a unit test.

Content

According to the the documentation, BufferedReader.read() and BufferedWriter.write() should raise io.BlockingIOError if the file is in non-blocking mode and the operation cannot succeed without blocking.
However, BufferedReader.read() returns None (which is what RawIOBase.read() is documented as doing), and BufferedWriter.write() raises IOError with a message like
 raw write() returned invalid length -1 (should have been 
 between 0 and 5904)
I tested this on Linux with Python 2.6, 2.7 and 3.x.
Attached is a unit test.

History
Date	User	Action	Args
2011年11月02日 15:08:55	sbt	set	recipients: + sbt
2011年11月02日 15:08:55	sbt	set	messageid: <1320246535.71.0.465783773129.issue13322@psf.upfronthosting.co.za>
2011年11月02日 15:08:55	sbt	link	issue13322 messages
2011年11月02日 15:08:54	sbt	create

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