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-rw-r--r--python/google/protobuf/pyext/descriptor_database.cc3
1 files changed, 3 insertions, 0 deletions
diff --git a/python/google/protobuf/pyext/descriptor_database.cc b/python/google/protobuf/pyext/descriptor_database.cc
index 514722b4..daa40cc7 100644
--- a/python/google/protobuf/pyext/descriptor_database.cc
+++ b/python/google/protobuf/pyext/descriptor_database.cc
@@ -64,6 +64,9 @@ static bool GetFileDescriptorProto(PyObject* py_descriptor,
}
return false;
}
+ if (py_descriptor == Py_None) {
+ return false;
+ }
const Descriptor* filedescriptor_descriptor =
FileDescriptorProto::default_instance().GetDescriptor();
CMessage* message = reinterpret_cast<CMessage*>(py_descriptor);