[Cython] git master fails to compile scipy

[Robert Bradshaw]

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
>
> error:
> Traceback (most recent call last):
>   File "/usr/bin/cython", line 8, in <module>
>     main(command_line = 1)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Main.py",
> line 704, in main
>     result = compile(sources, options)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Main.py",
> line 679, in compile
>     return compile_multiple(source, options)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Main.py",
> line 657, in compile_multiple
>     result = run_pipeline(source, options, context=context)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Main.py",
> line 487, in run_pipeline
>     err, enddata = Pipeline.run_pipeline(pipeline, source)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Pipeline.py",
> line 365, in run_pipeline
>     data = phase(data)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Pipeline.py",
> line 53, in generate_pyx_code_stage
>     module_node.process_implementation(options, result)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/ModuleNode.py",
> line 118, in process_implementation
>     self.generate_c_code(env, options, result)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/ModuleNode.py",
> line 349, in generate_c_code
>     self.body.generate_function_definitions(env, code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 436, in generate_function_definitions
>     stat.generate_function_definitions(env, code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 436, in generate_function_definitions
>     stat.generate_function_definitions(env, code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/FusedNode.py",
> line 785, in generate_function_definitions
>     stat.generate_function_definitions(env, code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 3068, in generate_function_definitions
>     FuncDefNode.generate_function_definitions(self, env, code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 1935, in generate_function_definitions
>     self.generate_function_body(env, code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 1691, in generate_function_body
>     self.body.generate_execution_code(code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 442, in generate_execution_code
>     stat.generate_execution_code(code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/UtilNodes.py",
> line 321, in generate_execution_code
>     self.body.generate_execution_code(code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 6419, in generate_execution_code
>     self.body.generate_execution_code(code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 442, in generate_execution_code
>     stat.generate_execution_code(code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 5865, in generate_execution_code
>     if_clause.generate_execution_code(code, end_label, is_last=i == last)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 5908, in generate_execution_code
>     self.body.generate_execution_code(code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 442, in generate_execution_code
>     stat.generate_execution_code(code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 4800, in generate_execution_code
>     self.generate_assignment_code(code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/Nodes.py",
> line 5091, in generate_assignment_code
>     self.lhs.generate_assignment_code(self.rhs, code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/ExprNodes.py",
> line 3897, in generate_assignment_code
>     self.generate_buffer_setitem_code(rhs, code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/ExprNodes.py",
> line 3905, in generate_buffer_setitem_code
>     buffer_entry, ptrexpr = self.buffer_lookup_code(code)
>   File
> "/tmp/local/lib/python2.7/site-packages/Cython-0.24.0a0-py2.7-linux-x86_64.egg/Cython/Compiler/ExprNodes.py",
> line 3873, in buffer_lookup_code
>     for ivar in self.indices]
> AttributeError: 'NoneType' object has no attribute 'signed'
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