KnowledgeBase/CII.md

@@ -1377,6 +1377,44 @@ A test application showing its use is here:
 
 <https://gitlab.eso.org/cosylab/elt-cii/mal/mal-test/-/blob/develop/cpp/mal-test-performance/opcua/mal-opcua-da-speed/src/common.cpp>
 
+---
+
+---
+
+---
+
+### Request-Reply Python Snippets \[MAL Python\]
+
+To interact with any MAL based remote service, you can use the python shell to connect to the remote object and invoke its methods and process the return values.
+
+The whole lifecycle (including clean-up) looks like this:
+
+```python
+# connect
+import elt.pymal
+malfact = elt.pymal.loadMalForUri("zpb.rr://", {})
+import ModStdif.Stdif.StdCmds
+client = malfact.getClient("zpb.rr://127.0.0.1:12081/StdCmds",
+                           ModStdif.Stdif.StdCmds.StdCmdsSync,
+                           elt.pymal.rr.qos.DEFAULT, {})
+# interact
+print (client.getState())
+
+# disconnect
+malfact.unregisterMal ("zpb")
+```
+
+**Side-note**: For what it's worth, this can be done as a one-liner:
+```plaintext
+python <<< 'import elt.pymal ; malfact = elt.pymal.loadMalForUri("zpb.rr://", {}) ; import ModStdif.Stdif.StdCmds ; client = malfact.getClient("zpb.rr://127.0.0.1:12081/StdCmds", ModStdif.Stdif.StdCmds.StdCmdsSync, elt.pymal.rr.qos.DEFAULT, {}) ; print (client.GetState()) ; malfact.unregisterMal ("zpb") '
+```
+... which would be equivalent to this msgsend call:
+
+```
+msgsend -t 60 -u zpb.rr://127.0.0.1:12081/StdCmds ::stdif::StdCmds::GetState
+```
+
+
 ### ------------------------------------------------------
 
 ### \[OLDB\]