Hello,
I have started using Cython recently to spped up some Python code; it
works very well and stably, but today I managed to crash Cython 0.11
while trying to compile the following pure Python code:
# iter.py
class Iter(object):
"""A docstring."""
def __iter__(self):
return self
def __next__(self):
raise StopIteration
I'm augmenting the pure Python code with the following .pxd file::
# iter.pxd
cpdef class Iter(object)
The Cython-0.11 invocation "cython iter.py" dies with the following backtrace::
$ cython iter.py
Error converting Pyrex file to C:
------------------------------------------------------------
...
class Iter(object):
"""A docstring."""
def __iter__(self):
^
------------------------------------------------------------
/tmp/iter.py:5:4: Compiler crash in AlignFunctionDefinitions
ModuleNode.body = StatListNode(iter.py:1:0)
StatListNode.stats[0] = PyClassDefNode(iter.py:1:0,
doc = 'A docstring.',
name = u'Iter')
CClassDefNode.body = StatListNode(iter.py:5:4)
StatListNode.stats[0] = DefNode(iter.py:5:4,
name = u'__iter__',
num_required_args = 1,
reqd_kw_flags_cname = '0')
Compiler crash traceback from this point on:
File "Visitor.py", line 149, in Cython.Compiler.Visitor.visitchild
(/home/rmurri/phd.cython/src/Cython-0.11/Cython/Compiler/Visitor.c:2814)
File "Visitor.py", line 45, in
Cython.Compiler.Visitor.BasicVisitor.visit
(/home/rmurri/phd.cython/src/Cython-0.11/Cython/Compiler/Visitor.c:1356)
File
"/home/rmurri/phd.cython/src/Cython-0.11/Cython/Compiler/ParseTreeTransforms.py",
line 788, in visit_DefNode
pxd_def = self.scope.lookup(node.name)
AttributeError: 'NoneType' object has no attribute 'lookup'
Compilation is fine if I merge the .pxd and the .py into a .pyx::
cpdef class Iter(object):
"""A docstring."""
def __iter__(self):
return self
def __next__(self):
raise StopIteration
Best regards,
Riccardo
--
Riccardo Murri, via Rossée 17, 6987 Caslano (CH)
_______________________________________________
Cython-dev mailing list
[email protected]
http://codespeak.net/mailman/listinfo/cython-dev
