Ticket #137: bug-137.patch

generate-python-exceptions.in

@@ -116 +116 @@
 }
 %}
 
+// Python really wants to have its "global interpreter lock" released
+// during calls that may take time.  The exception handler is the
+// most convenient place to do this.
+// We should use Py_BEGIN_ALLOW_THREADS et al, but the use of exceptions
+// prevents that.
 %exception {
+    PyThreadState *_save = PyEval_SaveThread();
     try {
         $action
+        PyEval_RestoreThread(_save);
     } catch (...) {
+        PyEval_RestoreThread(_save);
         XapianSetPythonException();
         SWIG_fail;
     }