Hi all,
I just got a compiler crash (Cython 0.17, 0.17.1 and current master)
when trying to compile a call to a function returning an np.ndarray:
cimport numpy as np
cdef np.ndarray[np.float64_t, ndim=2] trivial(X):
return X
def test():
# Uncommenting the following line, or removing the assignment,
# prevents the crash:
#cdef np.ndarray[np.float64_t, ndim=2] Z
Z = trivial(np.zeros(4))
I'm aware that the program contains an error and it's not much of a
hindrance to the project I'm working on, but the error message just
isn't very friendly:
Compiler crash traceback from this point on:
File "/home/lars/src/cython/Cython/Compiler/ExprNodes.py", line
1528, in analyse_target_types
Buffer.used_buffer_aux_vars(self.entry)
File "/home/lars/src/cython/Cython/Compiler/Buffer.py", line 280, in
used_buffer_aux_vars
buffer_aux.buflocal_nd_var.used = True
AttributeError: 'NoneType' object has no attribute 'buflocal_nd_var'
More details at https://gist.github.com/4114677. I looked at Buffer.py
and ExprNodes.py, but I couldn't figure out what exactly was going on.
Could someone please look into this?
TIA,
--
Lars Buitinck
Scientific programmer, ILPS
University of Amsterdam
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