STINNER Victor added the comment:
> You're supposed to use that code to create a file (the output file is just
> ""+""+""+""+""+""+""+""+""+...+"").
Oh ok, the bug is in Python compiler. It's probably an overflow of the C stack.
The bug was fixed in Python 3.3 by the issue #5765: see changeset ab02cd145f56.
See also the issue #19098 ("sys.setrecursionlimit(2**30) breaks interactive
shell") and the changeset c3df31cbcd0a.
Nick Coghlan wrote in the issue #5765: "However, agreed on the won't fix for
3.2 and 2.7, although I'd consider it at least for 2.7 if someone went through
and worked out a patch that applies cleanly."
$ python2
Python 2.7.5 (default, Sep 25 2014, 13:57:38)
[GCC 4.8.3 20140911 (Red Hat 4.8.3-7)] on linux2>>> compile('1' + '+1'*10**5,
'<string>', 'exec')
<code object <module> at 0x7f8c5ba2c1b0, file "<string>", line 1>
>>> compile('1' + '+1'*10**6, '<string>', 'exec')
Erreur de segmentation (core dumped)
$ python3
Python 3.3.2 (default, Jun 30 2014, 17:20:03)
[GCC 4.8.3 20140624 (Red Hat 4.8.3-1)] on linux
>>> compile('1' + '+1'*10**3, '<string>', 'exec')
<code object <module> at 0x7f7298d479c0, file "<string>", line 1>
>>> compile('1' + '+1'*10**4, '<string>', 'exec')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
RuntimeError: maximum recursion depth exceeded during compilation
----------
nosy: +ncoghlan
title: Segmentation fault with string concatenation -> C stack overflow in the
Python 2.7 compiler
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue22583>
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