Mailman 3 October 2008 - pypy-dev

2.5 and 2.4 compatibility
by Maciej Fijalkowski 12 Oct '08

12 Oct '08

I'm working on 2.5 compatibility branch right now. Due to incompatible changes, I suggest that we say we don't provide --pyversion option any more and simply compile 2.5 compatible interpreter. I don't really see benefits of providing 2.4 right now (after a brief discussion with Armin). If anyone objects, please do that now. Cheers, fijal

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sympy tests: pypy vs cpython incompatibilities
by Ondrej Certik 11 Oct '08

11 Oct '08

Hi, if you want to get many bugreports, here's how. :) $ git clone git://git.sympy.org/sympy.git $ cd sympy $ python >>> import sympy >>> sympy.test("sympy/core") [...] ============ tests finished: 292 passed, 9 xfailed in 1.40 seconds ============= True >>> This works in python2.4, python2.5 (there are some failures in python2.6) and it *doesn't* require py.test, just pure python. Now try pypy: $ ../pypy-dist/pypy-c # compile pypy to C and then to executable Python 2.4.1 (pypy 1.0.0 build 58853) on linux2 Type "help", "copyright", "credits" or "license" for more information. And now for something completely different: ``don't post links to patents here'' >>>> import sympy >>>> sympy.test("sympy/core") [ dozens pages of errors ] To ease debugging, use bin/test: $ ../pypy-dist/pypy-c bin/test sympy/core/ and use it like py.test. Basically, most of them reduce to this problem: $ python Python 2.4.5 (#2, Sep 29 2008, 15:31:42) [GCC 4.3.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from sympy import Function >>> f = Function("f") >>> $ ../pypy-dist/pypy-c Python 2.4.1 (pypy 1.0.0 build 58853) on linux2 Type "help", "copyright", "credits" or "license" for more information. And now for something completely different: ``things will be nice and stuff'' >>>> from sympy import Function >>>> f = Function("f") [boom ...] l.append(iter_copy(i)) File "/home/ondra/repos/sympy/sympy/core/multidimensional.py", line 43, in iter_copy l.append(iter_copy(i)) File "/home/ondra/repos/sympy/sympy/core/multidimensional.py", line 43, in iter_copy l.append(iter_copy(i)) File "/home/ondra/repos/sympy/sympy/core/multidimensional.py", line 42, in iter_copy if hasattr(i, "__iter__"): RuntimeError: internal error: <RuntimeError object at 0xb03b60> >>>> Ondrej

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sprint
by Maciej Fijalkowski 05 Oct '08

05 Oct '08

Hello from the third world. I failed to embark the train today. It seems that these days you need to buy ticket at least 3 days in advance in order to get to berlin. I managed though to get some place on ukrainian train, which goes 3h longer, but at least have some places. I hope to be in ddorf tomorrow around lunch. Cheers, fijal

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