Hello All, Below shows how to reproduce the error directly. James chernev 314% cctbx.python Enthought Python Distribution -- www.enthought.com Version: 7.3-2 (64-bit) Python 2.7.3 |EPD 7.3-2 (64-bit)| (default, Apr 12 2012, 11:14:05) [GCC 4.0.1 (Apple Inc. build 5493)] on darwin Type "credits", "demo" or "enthought" for more information. py> inf = 1e300 py> inf * inf inf py> from iotbx import pdb py> inf * inf show_stack(1): <stdin>(1) <module> libc backtrace (13 frames, most recent call last): 14 python2.7 0x0000000100000f54 start + 52 13 Python 0x0000000100108576 Py_Main + 3318 12 Python 0x00000001000f2c6e PyRun_AnyFileExFlags + 126 11 Python 0x00000001000f2b2e PyRun_InteractiveLoopFlags + 78 10 Python 0x00000001000f28eb PyRun_InteractiveOneFlags + 379 9 Python 0x00000001000cd2c6 PyEval_EvalCode + 54 8 Python 0x00000001000ccfc5 PyEval_EvalCodeEx + 1733 7 Python 0x00000001000c7ea0 PyEval_EvalFrameEx + 11200 6 Python 0x0000000100010af8 PyNumber_Multiply + 40 5 Python 0x000000010000c569 binary_op1 + 137 4 ??? 0x0000000000000002 0x0 + 2 3 libsystem_c.dylib 0x00007fff84b0ccfa _sigtramp + 26 2 boost_python_meta_ext.so 0x00000001007013c0 initboost_python_meta_ext + 0 Floating-point error (Python and libc call stacks above) This crash may be due to a problem in any imported Python module, including modules which are not part of the cctbx project. To disable the traps leading to this message, define these environment variables (e.g. assign the value 1): BOOST_ADAPTBX_FPE_DEFAULT BOOST_ADAPTBX_SIGNALS_DEFAULT This will NOT solve the problem, just mask it, but may allow you to proceed in case it is not critical. On Apr 15, 2013, at 9:24 PM, James Stroud wrote:
Hello All,
There is a strange incompatibility between pyyaml and iotbx.pdb that depends on the order of import. If yaml is imported first, there is no problem. If iotbx.pdb is imported first, then importing yaml crashes. This is the yaml that comes with enthought python, but I don't think it's using libyaml, which is the C implementation. So the yaml, from what I can tell, is pure python.
I'm wondering if anyone else can reproduce this error.
James