Amaury Forgeot d'Arc <amaur...@gmail.com> added the comment:
Agreed. There was a similar issue in python2.6 with list comprehensions.
The issue is that both threads run the code with the same globals dictionary,
and top-level code use the same dict for locals and globals.
This is already fixed in 2.7 and 3.2, temporary variables are no more used.
Meanwhile, I can see two workarounds:
- Run the code in a python function; the _[1] variable will be local to the
function, and distinct for each thread.
- Use PyRun_String(), and pass a different dictionary for each thread::
PyObject *d, *v;
d = PyDict_New();
v = PyRun_String(command, Py_file_input, d, d);
Py_XDECREF(v);
Py_XDECREF(d);
But the 3.2 fix cannot be ported to 3.1: it needs a new opcode.
----------
nosy: +amaury.forgeotdarc
resolution: -> out of date
status: open -> pending
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue10393>
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