Allow for non-existant data and doch fields

data_repo_renderer/__init__.py

@@ -461,13 +461,19 @@ def cli_run_renderer(argvec=None):
 
     GitUpdate(yaml_dict, output_file=update_script)
 
-    # append all data download lines
+    # append all data download lines (if any)
+    try:
         for data in yaml_dict["data"]:
             data["method"](data, output_file=update_script)
+    except KeyError as e:
+        pass
 
-    # append all doc download lines
+    # append all doc download lines (if any)
+    try:
         for doc in yaml_dict["doc"]:
             doc["method"](doc, output_file=update_script)
+    except KeyError as e:
+        pass
 
     PostProcessing(yaml_dict, output_file=update_script)
     GitFinalize(yaml_dict, output_file=update_script)