From 47d7cd31dc2720ce7095accf659e75179ea8d051 Mon Sep 17 00:00:00 2001
From: Ivan Levkivskyi <levkivskyi@gmail.com>
Date: Mon, 6 Feb 2023 15:48:39 +0000
Subject: [PATCH 1/2] Consistently use type-abstract error code

---
 mypy/messages.py                     | 4 +++-
 test-data/unit/check-errorcodes.test | 5 +++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/mypy/messages.py b/mypy/messages.py
index 23b6f7c0e991..aefe65f8de09 100644
--- a/mypy/messages.py
+++ b/mypy/messages.py
@@ -1787,7 +1787,9 @@ def bad_proto_variance(
 
     def concrete_only_assign(self, typ: Type, context: Context) -> None:
         self.fail(
-            f"Can only assign concrete classes to a variable of type {format_type(typ)}", context
+            f"Can only assign concrete classes to a variable of type {format_type(typ)}",
+            context,
+            code=codes.TYPE_ABSTRACT,
         )
 
     def concrete_only_call(self, typ: Type, context: Context) -> None:
diff --git a/test-data/unit/check-errorcodes.test b/test-data/unit/check-errorcodes.test
index 6e848e6a1e39..8bf12eca1f59 100644
--- a/test-data/unit/check-errorcodes.test
+++ b/test-data/unit/check-errorcodes.test
@@ -998,6 +998,11 @@ T = TypeVar("T")
 def test(tp: Type[T]) -> T: ...
 test(C)  # E: Only concrete class can be given where "Type[C]" is expected  [type-abstract]
 
+class D(C):
+    @abc.abstractmethod
+    def bar(self) -> None: ...
+cls: Type[C] = D  # E: Can only assign concrete classes to a variable of type "Type[C]"  [type-abstract]
+
 [case testUncheckedAnnotationCodeShown]
 def f():
     x: int = "no"  # N: By default the bodies of untyped functions are not checked, consider using --check-untyped-defs  [annotation-unchecked]

From cc5dc5487d3237c97dbe13cd93b93e18deb2f438 Mon Sep 17 00:00:00 2001
From: Ivan Levkivskyi <levkivskyi@gmail.com>
Date: Mon, 6 Feb 2023 17:28:12 +0000
Subject: [PATCH 2/2] Add TYPE_ABSTRACT to dict of code migrations

---
 mypy/errors.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mypy/errors.py b/mypy/errors.py
index 7cc0c5764861..ee1fa137dfe4 100644
--- a/mypy/errors.py
+++ b/mypy/errors.py
@@ -24,7 +24,7 @@
 
 # Keep track of the original error code when the error code of a message is changed.
 # This is used to give notes about out-of-date "type: ignore" comments.
-original_error_codes: Final = {codes.LITERAL_REQ: codes.MISC}
+original_error_codes: Final = {codes.LITERAL_REQ: codes.MISC, codes.TYPE_ABSTRACT: codes.MISC}
 
 
 class ErrorInfo: