Ensure original exclude value is not modified

This commit also fixes some weird cases in the recursive `update_normalized_all` call and Ellipsis values.
pydantic · Jun 2, 2020 · b9c83e1 · b9c83e1
1 parent 7ee0a64
commit b9c83e1
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Showing 2 changed files with 20 additions and 4 deletions.
diff --git a/pydantic/utils.py b/pydantic/utils.py
@@ -228,20 +228,24 @@ def update_normalized_all(
     if not item:
         return all_items
     if isinstance(item, dict) and isinstance(all_items, dict):
+        item = dict(item)
         item.update({k: update_normalized_all(item[k], v) for k, v in all_items.items() if k in item})
         item.update({k: v for k, v in all_items.items() if k not in item})
         return item
     if isinstance(item, set) and isinstance(all_items, set):
+        item = set(item)
         item.update(all_items)
         return item
     if isinstance(item, dict) and isinstance(all_items, set):
+        item = dict(item)
         item.update({k: ... for k in all_items if k not in item})
         return item
     if isinstance(item, set) and isinstance(all_items, dict):
-        new_item = {k: ... for k in item}
-        new_item.update({k: v for k, v in all_items.items() if k not in item})
-        return new_item
-    return all_items  # pragma: no cover
+        item = {k: ... for k in item}
+        item.update({k: v for k, v in all_items.items() if k not in item})
+        return item
+    # Case when item or all_items is ... (in recursive calls).
+    return item
 
 
 class PyObjectStr(str):

diff --git a/tests/test_edge_cases.py b/tests/test_edge_cases.py
@@ -536,6 +536,12 @@ class Model(BaseModel):
     assert m.dict(
         exclude={'subs': {'__all__': {'subsubs': {'__all__': {'i'}}}, 0: {'subsubs': {'__all__': {'j'}}}}}
     ) == {'subs': [{'k': 1, 'subsubs': [{}, {}]}, {'k': 2, 'subsubs': [{'j': 3}]}]}
+    assert m.dict(exclude={'subs': {'__all__': {'subsubs': ...}, 0: {'subsubs': {'__all__': {'j'}}}}}) == {
+        'subs': [{'k': 1, 'subsubs': [{'i': 1}, {'i': 2}]}, {'k': 2}]
+    }
+    assert m.dict(exclude={'subs': {'__all__': {'subsubs': {'__all__': {'j'}}}, 0: {'subsubs': ...}}}) == {
+        'subs': [{'k': 1}, {'k': 2, 'subsubs': [{'i': 3}]}]
+    }
     # Merge sub sets
     assert m.dict(exclude={'subs': {'__all__': {'subsubs': {0}}, 0: {'subsubs': {1}}}}) == {
         'subs': [{'k': 1, 'subsubs': []}, {'k': 2, 'subsubs': []}]
@@ -595,6 +601,12 @@ class Model(BaseModel):
     assert m.dict(
         include={'subs': {'__all__': {'subsubs': {'__all__': {'i'}}}, 0: {'subsubs': {'__all__': {'j'}}}}}
     ) == {'subs': [{'subsubs': [{'i': 1, 'j': 1}, {'i': 2, 'j': 2}]}, {'subsubs': [{'i': 3}]}]}
+    assert m.dict(include={'subs': {'__all__': {'subsubs': ...}, 0: {'subsubs': {'__all__': {'j'}}}}}) == {
+        'subs': [{'subsubs': [{'j': 1}, {'j': 2}]}, {'subsubs': [{'i': 3, 'j': 3}]}]
+    }
+    assert m.dict(include={'subs': {'__all__': {'subsubs': {'__all__': {'j'}}}, 0: {'subsubs': ...}}}) == {
+        'subs': [{'subsubs': [{'i': 1, 'j': 1}, {'i': 2, 'j': 2}]}, {'subsubs': [{'j': 3}]}]
+    }
     # Merge sub sets
     assert m.dict(include={'subs': {'__all__': {'subsubs': {0}}, 0: {'subsubs': {1}}}}) == {
         'subs': [{'subsubs': [{'i': 1, 'j': 1}, {'i': 2, 'j': 2}]}, {'subsubs': [{'i': 3, 'j': 3}]}]