Fix __post_init_post_parse__ is incorrectly passed keyword arguments …

…when no __post_init__ is defined
pydantic · Aug 9, 2022 · 1d68eb6 · 1d68eb6
1 parent 11d8589
commit 1d68eb6
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Showing 2 changed files with 15 additions and 2 deletions.
diff --git a/pydantic/dataclasses.py b/pydantic/dataclasses.py
@@ -310,8 +310,10 @@ def new_init(self: 'Dataclass', *args: Any, **kwargs: Any) -> None:
                             # set arg value by default
                             initvars_and_values[f.name] = args[i]
                         except IndexError:
-                            initvars_and_values[f.name] = f.default
-                initvars_and_values.update(kwargs)
+                            if f.name in kwargs:
+                                initvars_and_values[f.name] = kwargs[f.name]
+                            else:
+                                initvars_and_values[f.name] = f.default
 
                 self.__post_init_post_parse__(**initvars_and_values)
 

diff --git a/tests/test_dataclasses.py b/tests/test_dataclasses.py
@@ -600,6 +600,17 @@ def __post_init_post_parse__(self, base_path):
     assert PathDataPostInitPostParse('world', base_path='/hello').path == Path('/hello/world')
 
 
+def test_post_init_post_parse_without_initvars():
+    @pydantic.dataclasses.dataclass
+    class Foo:
+        a: int
+
+        def __post_init_post_parse__(self):
+            ...
+
+    Foo(a=1)
+
+
 def test_classvar():
     @pydantic.dataclasses.dataclass
     class TestClassVar: