Avoid infinite loop when passing IBMQRandomService to child (#805)

* check for init * add release note (cherry picked from commit 86e3791)
Qiskit · Nov 12, 2020 · 79b6379 · 79b6379
1 parent c9743da
commit 79b6379
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/qiskit/providers/ibmq/random/ibmqrandomservice.py b/qiskit/providers/ibmq/random/ibmqrandomservice.py
@@ -110,7 +110,8 @@ def __dir__(self) -> Dict:
         return self.__dict__
 
     def __getattr__(self, item: str) -> Any:
-        self._discover_services()
+        if not self.__getattribute__('_initialized'):
+            self._discover_services()
         try:
             return self._services[item]
         except KeyError:

diff --git a/releasenotes/notes/random-loop-85cc24a9ac024a8f.yaml b/releasenotes/notes/random-loop-85cc24a9ac024a8f.yaml
@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fixes the infinite loop raised when passing an ``IBMQRandomService`` instance
+    to a child process.