Update nipype/interfaces/base/support.py

Co-authored-by: Chris Markiewicz <effigies@gmail.com>

Author: oesteban

nipype/interfaces/base/support.py

@@ -110,16 +110,10 @@ def __exit__(self, exc_type, exc_value, exc_tb):
             if self._ignore_exc:
                 return True
 
-        _exitcode = (
-            getattr(self._runtime, "returncode", None)
-            if getattr(self._runtime, "cmdline", None)
-            else 0
-        )
-        _success_codes = getattr(self._runtime, "success_codes", (0,))
-        if _exitcode not in _success_codes:
-            self._runtime.traceback = (
-                f"RuntimeError: subprocess exited with code {self._runtime.returncode}."
-            )
+        if hasattr(self._runtime, "cmdline"):
+            retcode = self._runtime.returncode
+            if retcode not in self._runtime.success_codes:
+                self._runtime.traceback = f"RuntimeError: subprocess exited with code {retcode}."
 
     @property
     def runtime(self):