Tim Peters added the comment:
Suggest caution here. test_sax fails the same way for me too (Windows Vista),
under both the released 3.3.2 and a Python built from the current hg default
branch.
However, these files (test.xml and test.xml.out) have not changed since the
Python 2.7 line - the \r\n line endings have _always_ been there, and test_sax
works fine under (e.g.) Python 2.7.5 on Windows.
So it's not that the files have changed, it must be that Python is behaving
differently.
Unfortunately, I don't know anything about what test_sax is trying to do. I do
see that under 2.7, test_sax does
xml_test_out = open(TEST_XMLFILE_OUT).read()
but 3.3 does
with open(TEST_XMLFILE_OUT, 'rb') as f:
xml_test_out = f.read()
That is, 2.7 opens the file for reading in text mode, but 3.3 opens it in
binary mode. That makes a big difference for text files under Windows.
It's also disturbing that the Windows buildbots don't fail. There is no change
in "environment" that should affect the bytes seen when a file is read - and
the buildbots "should be" seeing, byte for byte, the same files developers and
users see.
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nosy: +tim.peters
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<http://bugs.python.org/issue18889>
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