Heya Cython folks, I face a compiler crash (full log at the bottom of the mail) with Cython 0.17.1-392-g81d3d10 (today's git). This only happens if Cython directive binding is left to True, if set to False, the project builds and runs fine.
Steps to reproduce: # git clone git://github.com/strohel/PyBayes.git # cd PyBayes # git submodule update --init Open support/dist_cmd_build_prepare.py, set binding to True on line 35 # ./setup.py build Note that this bug is not at all a recent regression - it exists at least since binding=True has been made default (commit 621dbe6403) - sorry for being that late reporting it. On a related note, what does the binding directive mean? I was unable to find any info at [1] or [2]. What are the consequences of disabling it to work- around this crash? [1] http://wiki.cython.org/enhancements/compilerdirectives [2] http://docs.cython.org/src/reference/compilation.html Regards, Matěj Laitl =============== Full Crash Log =============== running build_ext cythoning pybayes/filters.py to build/temp.linux- x86_64-2.7/pyrex/pybayes/filters.c Error compiling Cython file: ------------------------------------------------------------ ... cpdef Pdf posterior(self) cpdef double evidence_log(self, np.ndarray yt) except? -1 cdef class KalmanFilter(Filter): cdef readonly np.ndarray A, B, C, D, Q, R ^ ------------------------------------------------------------ pybayes/filters.pxd:22:29: Compiler crash in AnalyseDeclarationsTransform ModuleNode.body = StatListNode(filters.py:13:0) StatListNode.stats[6] = StatListNode(filters.py:62:0) StatListNode.stats[0] = CClassDefNode(filters.py:62:0, base_class_name = u'Filter', class_name = u'KalmanFilter', doc = u'Implementation of standard Kalman filter. **cond** in :meth:`bayes` is interpreted as\n control (intervention) input :math:`u_t` to the system. \n\n Kalman filter forms *optimal Bayesian solution* for the following system:\n\n .. math::\n\n x_t &= A_t x_{t-1} + B_t u_t + v_{t-1} \\quad \\quad\n A_t \\in \\mathbb{R}^{n,n} \\;\\;\n B_t \\in \\mathbb{R}^{n,k} \\;\\;\n \\;\\; n \\in \\mathbb{N}\n \\;\\; k \\in \\mathbb{N}_0 \\text{ (may be zero)}\n \\\\\n y_t &= C_t x_t + D_t u_t + w_t \\quad \\quad \\quad \\;\\;\n C_t \\in \\mathbb{R}^{j,n} \\;\\;\n D_t \\in \\mathbb{R}^{j,k} \\;\\;\n j \\in \\mathbb{N} \\;\\; j \\leq n\n\n where :math:`x_t \\in \\mathbb{R}^n` is hidden state vector, :math:`y_t \\in \\mathbb{R}^j` is\n observation vector and :math:`u_t \\in \\mathbb{R}^k` is control vector. :math:`v_t` is normally\n distributed zero-mean process noise with covariance matrix :math:`Q_t`, :math:`w_t` is normally\n distributed zero- mean observation noise with covariance matrix :math:`R_t`. Additionally, intial\n pdf (**state_pdf**) has to be Gaussian.\n ', visibility = 'private') Compiler crash traceback from this point on: File "Visitor.py", line 168, in Cython.Compiler.Visitor.TreeVisitor._visit (/var/tmp/portage/dev-python/cython-9999/work/Cython/Compiler/Visitor.c:3840) File "Visitor.py", line 284, in Cython.Compiler.Visitor.CythonTransform.visit_Node (/var/tmp/portage/dev- python/cython-9999/work/Cython/Compiler/Visitor.c:5756) File "Visitor.py", line 236, in Cython.Compiler.Visitor.VisitorTransform.visitchildren (/var/tmp/portage/dev- python/cython-9999/work/Cython/Compiler/Visitor.c:4813) File "Visitor.py", line 210, in Cython.Compiler.Visitor.TreeVisitor._visitchildren (/var/tmp/portage/dev- python/cython-9999/work/Cython/Compiler/Visitor.c:4591) AssertionError: Cannot insert list here: body in <Cython.Compiler.Nodes.PropertyNode object at 0x3136550> _______________________________________________ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
