fix kv get_tree for objects within lists

Author: minrk

jupyterhub_traefik_proxy/kv_proxy.py

@@ -319,13 +319,22 @@ def by_depth(item):
             key_path = key.split(sep)
             d = tree
             for parent_key, key in zip(key_path[:-1], key_path[1:]):
-                if parent_key not in d:
+                if parent_key.isdigit():
+                    parent_key = int(parent_key)
+                if isinstance(d, dict) and parent_key not in d:
                     # create container
                     if key.isdigit():
                         # integer keys mean it's a list
                         d[parent_key] = []
                     else:
                         d[parent_key] = {}
+                elif isinstance(d, list):
+                    if key.isdigit():
+                        # integer keys mean it's a list
+                        next_d = []
+                    else:
+                        next_d = {}
+                    d.append(next_d)
                 # walk down to the next level
                 d = d[parent_key]
             if isinstance(d, list):

tests/test_kv.py

@@ -81,6 +81,11 @@ def test_flatten_dict_error(orig, expected):
             "key/deeper",
             {"anddeeper": "false"},
         ),
+        (
+            [("key/0/x", "true"), ("key/1/y", "false")],
+            "",
+            {"key": [{"x": "true"}, {"y": "false"}]},
+        ),
     ],
 )
 def test_unflatten_dict(flat, root_key, expected):