In https://bugs.debian.org/793129 Dan Greene reported that trying to cast a pointer to a memoryview object causes a compiler crash: $ python -c 'import cython; cython.inline("<int[:12]>NULL")' Compiling /home/jwilk/.cython/inline/_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx because it changed. [1/1] Cythonizing /home/jwilk/.cython/inline/_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx Error compiling Cython file: ------------------------------------------------------------ ... def __invoke(): <int[:12]>NULL ^ ------------------------------------------------------------ .cython/inline/_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx:5:4: Compiler crash in AnalyseExpressionsTransform ModuleNode.body = StatListNode(_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx:4:0) StatListNode.stats[0] = DefNode(_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx:4:0, modifiers = [...]/0, name = u'__invoke', py_wrapper_required = True, reqd_kw_flags_cname = '0', used = True) File 'Nodes.py', line 430, in analyse_expressions: StatListNode(_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx:5:4, is_terminator = True) File 'Nodes.py', line 4741, in analyse_expressions: ExprStatNode(_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx:5:4) File 'ExprNodes.py', line 460, in analyse_expressions: CythonArrayNode(_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx:5:4, is_temp = True, mode = 'c', use_managed_ref = True) File 'ExprNodes.py', line 9567, in analyse_types: CythonArrayNode(_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx:5:4, is_temp = True, mode = 'c', use_managed_ref = True) File 'ExprNodes.py', line 9582, in get_cython_array_type: CythonArrayNode(_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx:5:4, is_temp = True, mode = 'c', use_managed_ref = True) Compiler crash traceback from this point on: File "/home/jwilk/.local/lib/python2.7/site-packages/Cython/Compiler/ExprNodes.py", line 9582, in get_cython_array_type return env.global_scope().context.cython_scope.viewscope.lookup("array").type AttributeError: 'CythonScope' object has no attribute 'viewscope' Traceback (most recent call last): File "<string>", line 1, in <module> File "/home/jwilk/.local/lib/python2.7/site-packages/Cython/Shadow.py", line 114, in inline return cython_inline(f, *args, **kwds) File "/home/jwilk/.local/lib/python2.7/site-packages/Cython/Build/Inline.py", line 212, in cython_inline build_extension.extensions = cythonize([extension], include_path=cython_include_dirs, quiet=quiet) File "/home/jwilk/.local/lib/python2.7/site-packages/Cython/Build/Dependencies.py", line 877, in cythonize cythonize_one(*args) File "/home/jwilk/.local/lib/python2.7/site-packages/Cython/Build/Dependencies.py", line 997, in cythonize_one raise CompileError(None, pyx_file) Cython.Compiler.Errors.CompileError: /home/jwilk/.cython/inline/_cython_inline_ad8e8c5018441f8a5417cab08ec65d13.pyx -- Jakub Wilk