STINNER Victor <victor.stin...@haypocalc.com> added the comment:
I wrote a short script to test TextIOWrapper.readline() with 32
threads. After 5 seconds, I found this issue in Python trunk (2.7):
Exception in thread Thread-26:
Traceback (most recent call last):
File "/home/SHARE/SVN/python-trunk/Lib/threading.py", line 522, in
__bootstrap_inner
self.run()
File "/home/haypo/crash_textiowrapper.py", line 15, in run
line = self.file.readline()
File "/home/SHARE/SVN/python-trunk/Lib/io.py", line 1835, in
readline
self._rewind_decoded_chars(len(line) - endpos)
File "/home/SHARE/SVN/python-trunk/Lib/io.py", line 1541, in
_rewind_decoded_chars
raise AssertionError("rewind decoded_chars out of bounds")
AssertionError: rewind decoded_chars out of bounds
But it looks that py3k is stronger because it doesn't crash. Is it the
power of the GIL?
----------
Added file: http://bugs.python.org/file13361/crash_textiowrapper.py
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<http://bugs.python.org/issue5502>
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