2013/8/29 Brett Cannon <brett@python.org>:
I also created a "pyfailmalloc" project based on the PEP 445 to inject MemoryError exceptions. (...)
Would extension module authors find it useful?
I don't know, I created two months ago and I didn't made a public annoucement.
If so maybe we need a malloc package with trace and fail submodules?
I read somewhere "flat is better than nested". failmalloc and tracemalloc are not directly related. I guess that they can be used at the same time, but I didn't try.
And if we add it we might want to add to running the tool as part of the devguide something people can work on.
There are still tricky open issues related to failmalloc :-) - frame_fasttolocals.patch: fix for PyFrame_FastToLocals(), I didn't commit the patch because it is not atomic (it does not handle errors correctly). I should modify it to copy the locals before modifying the dict, so it can be restored in case of errors. - #18507: import_init() should not use Py_FatalError() but return an error - #18509: CJK decoders should return MBERR_EXCEPTION on PyUnicodeWriter error - fix tests hang when an exception occurs in a thread Victor