From 706f1b397df09a27ab8981ab9464547028d0c322 Mon Sep 17 00:00:00 2001

From: David Gobbi <david.gobbi@gmail.com>

Date: Wed, 11 Jul 2018 17:14:50 -0600

Subject: [PATCH] Fix compilation issue due to Python3.7 API change

The PyUnicode_AsUTF8() method returns a "const char *" in Py37.

---

 Wrapping/PythonCore/vtkPythonArgs.cxx | 10 +++++++++-

 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Wrapping/PythonCore/vtkPythonArgs.cxx b/Wrapping/PythonCore/vtkPythonArgs.cxx

index 1a82af0802..b733458975 100644

--- a/Wrapping/PythonCore/vtkPythonArgs.cxx

+++ b/Wrapping/PythonCore/vtkPythonArgs.cxx

@@ -95,13 +95,21 @@ bool vtkPythonGetStringValue(PyObject *o, T *&a, const char *exctext)

 {

   if (PyBytes_Check(o))

   {

+#if PY_VERSION_HEX >= 0x03070000

+    a = const_cast<char *>(PyBytes_AS_STRING(o));

+    return true;

+#else

     a = PyBytes_AS_STRING(o);

     return true;

+#endif

   }

 #ifdef Py_USING_UNICODE

   else if (PyUnicode_Check(o))

   {

-#if PY_VERSION_HEX >= 0x03030000

+#if PY_VERSION_HEX >= 0x03070000

+    a = const_cast<char *>(PyUnicode_AsUTF8(o));

+    return true;

+#elif PY_VERSION_HEX >= 0x03030000

     a = PyUnicode_AsUTF8(o);

     return true;

 #else

-- 

2.18.1