[Cython] git master fails to compile scipy

[Julian Taylor]

thanks,
another file fails too:
https://github.com/scipy/scipy/blob/master/scipy/sparse/csgraph/_shortest_path.pyx

Error compiling Cython file:
------------------------------------------------------------
...
                for k from csr_indptr[j] <= k < csr_indptr[j + 1]:
                    w12 = csr_weights[k]
                    ind_k = csr_indices[k]
                    d2 = dist_matrix[i, ind_k]
                    if d1 + w12 < d2:
                        dist_matrix[i, ind_k] = d2 = d1 + w12
                                                       ^
------------------------------------------------------------

scipy/sparse/csgraph/_shortest_path.pyx:798:56: Compiler crash in
AnalyseExpressionsTransform

ModuleNode.body = StatListNode(_shortest_path.pyx:12:0)
StatListNode.stats[17] = StatListNode(_shortest_path.pyx:770:5)
StatListNode.stats[0] = CFuncDefNode(_shortest_path.pyx:770:5,
    args = [...]/6,
    modifiers = [...]/0,
    visibility = u'private')
File 'Nodes.py', line 430, in analyse_expressions:
StatListNode(_shortest_path.pyx:777:4,
    is_terminator = True)
File 'Nodes.py', line 6370, in analyse_expressions:
ForFromStatNode(_shortest_path.pyx:786:4,
    relation1 = u'<=',
    relation2 = u'<')
File 'Nodes.py', line 430, in analyse_expressions:
StatListNode(_shortest_path.pyx:787:8)
File 'Nodes.py', line 6370, in analyse_expressions:
ForFromStatNode(_shortest_path.pyx:790:8,
    relation1 = u'<=',
    relation2 = u'<')
File 'Nodes.py', line 430, in analyse_expressions:
StatListNode(_shortest_path.pyx:791:12)
File 'Nodes.py', line 6370, in analyse_expressions:
ForFromStatNode(_shortest_path.pyx:791:12,
    relation1 = u'<=',
    relation2 = u'<')
File 'Nodes.py', line 430, in analyse_expressions:
StatListNode(_shortest_path.pyx:792:16)
File 'Nodes.py', line 6370, in analyse_expressions:
ForFromStatNode(_shortest_path.pyx:793:16,
    relation1 = u'<=',
    relation2 = u'<')
File 'Nodes.py', line 430, in analyse_expressions:
StatListNode(_shortest_path.pyx:794:20)
File 'Nodes.py', line 5853, in analyse_expressions:
IfStatNode(_shortest_path.pyx:797:20)
File 'Nodes.py', line 5899, in analyse_expressions:
IfClauseNode(_shortest_path.pyx:797:23)
File 'Nodes.py', line 430, in analyse_expressions:
StatListNode(_shortest_path.pyx:798:24)
File 'Nodes.py', line 4787, in analyse_expressions:
CascadedAssignmentNode(_shortest_path.pyx:798:56,
    assignment_overloads = [...]/0)
File 'Nodes.py', line 5157, in analyse_types:
CascadedAssignmentNode(_shortest_path.pyx:798:56,
    assignment_overloads = [...]/0)

Compiler crash traceback from this point on:
  File
"/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
line 5157, in analyse_types
    overloaded = lhs.type.is_cpp_class and env.lookup_operator('=',
[lhs, self.rhs])
AttributeError: 'NoneType' object has no attribute 'is_cpp_class'


On 11.10.2015 07:30, Robert Bradshaw wrote:
> Thanks for the report. This should be fixed with
> https://github.com/cython/cython/commit/eef2bc650945d69158e888653a2f8bd6bbad3db3
> 
> On Sat, Oct 10, 2015 at 2:11 PM, Julian Taylor via cython-devel
> <cython-devel at python.org> wrote:
>> hi,
>> since ab78f93b3ffa88183a0d2aae6b692e394c51f860 scipy does not build anymore:
>> the failing file is:
>> https://github.com/scipy/scipy/blob/master/scipy/sparse/csgraph/_reordering.pyx
>>