Upgrade to mypy 1.7.0 (#506)

Author: intgr

setup.py

@@ -29,7 +29,7 @@ def find_stub_files(name: str) -> List[str]:
 
 # Keep compatible-mypy major.minor version pinned to what we use in CI (requirements.txt)
 extras_require = {
-    "compatible-mypy": ["mypy~=1.6.0", "django-stubs[compatible-mypy]"],
+    "compatible-mypy": ["mypy~=1.7.0", "django-stubs[compatible-mypy]"],
     "coreapi": ["coreapi>=2.0.0"],
     "markdown": ["types-Markdown>=0.1.5"],
 }

tests/typecheck/test_fields.yml

@@ -52,7 +52,7 @@
 
         CharField(initial='', default=lambda: '')
         CharField(initial=None, default=4)  # E: Argument "default" to "CharField" has incompatible type "int"; expected "Union[Union[str, _StrPromise], Callable[[], Union[str, _StrPromise]], None, _Empty]"
-        CharField(initial={}, default=empty)  # E: Argument "initial" to "CharField" has incompatible type "Dict[<nothing>, <nothing>]"; expected "Union[str, Callable[[], str], None, _Empty]"
+        CharField(initial={}, default=empty)  # E: Argument "initial" to "CharField" has incompatible type "Dict[Never, Never]"; expected "Union[str, Callable[[], str], None, _Empty]"
 
         x: Optional[str] = CharField().get_initial()
         y: Optional[int] = CharField().get_initial()  # E: Incompatible types in assignment (expression has type "Optional[str]", variable has type "Optional[int]")
@@ -123,13 +123,13 @@
         DictField(default={})
         DictField(default={'a': 1, 'b': 2})
         DictField(default=lambda: {'a': [], 'b': 'str'})
-        DictField(default=[])  # E: Argument "default" to "DictField" has incompatible type "List[<nothing>]"; expected "Union[Dict[Any, Any], Callable[[], Dict[Any, Any]], None, _Empty]"
+        DictField(default=[])  # E: Argument "default" to "DictField" has incompatible type "List[Never]"; expected "Union[Dict[Any, Any], Callable[[], Dict[Any, Any]], None, _Empty]"
 
         JSONField(allow_null=True, default=None)
         JSONField(default={})
         JSONField(default={'a': 1, 'b': 2})
         JSONField(default=lambda: {'a': [], 'b': 'str'})
-        JSONField(default=[])  # E: Argument "default" to "JSONField" has incompatible type "List[<nothing>]"; expected "Union[Mapping[Any, Any], Callable[[], Mapping[Any, Any]], None, _Empty]"
+        JSONField(default=[])  # E: Argument "default" to "JSONField" has incompatible type "List[Never]"; expected "Union[Mapping[Any, Any], Callable[[], Mapping[Any, Any]], None, _Empty]"
 
 -   case: ListField_default
     main: |

tests/typecheck/test_serializers.yml

@@ -106,7 +106,7 @@
     - arg: ""
       err: No overload variant of "ReturnList" matches argument type "TestSerializer"
     - arg: "[],"
-      err: No overload variant of "ReturnList" matches argument types "List[<nothing>]", "TestSerializer"
+      err: No overload variant of "ReturnList" matches argument types "List[Never]", "TestSerializer"
   main: |
     from rest_framework import serializers
     from rest_framework.utils.serializer_helpers import ReturnList
@@ -125,7 +125,7 @@
     - arg: ""
       err: All overload variants of "ReturnList" require at least one argument
     - arg: "[]"
-      err: No overload variant of "ReturnList" matches argument type "List[<nothing>]"
+      err: No overload variant of "ReturnList" matches argument type "List[Never]"
   main: |
     from rest_framework import serializers
     from rest_framework.utils.serializer_helpers import ReturnList
@@ -176,9 +176,9 @@
     - arg: ""
       err: No overload variant of "ReturnDict" matches argument type "TestSerializer"
     - arg: "{},"
-      err: No overload variant of "ReturnDict" matches argument types "Dict[<nothing>, <nothing>]", "TestSerializer"
+      err: No overload variant of "ReturnDict" matches argument types "Dict[Never, Never]", "TestSerializer"
     - arg: "[],"
-      err: No overload variant of "ReturnDict" matches argument types "List[<nothing>]", "TestSerializer"
+      err: No overload variant of "ReturnDict" matches argument types "List[Never]", "TestSerializer"
     - arg: "[('a', 'a')],"
       err: No overload variant of "ReturnDict" matches argument types "List[Tuple[str, str]]", "TestSerializer"
   main: |
@@ -205,9 +205,9 @@
     - arg: ""
       err: All overload variants of "ReturnDict" require at least one argument
     - arg: "{}"
-      err: No overload variant of "ReturnDict" matches argument type "Dict[<nothing>, <nothing>]"
+      err: No overload variant of "ReturnDict" matches argument type "Dict[Never, Never]"
     - arg: "[]"
-      err: No overload variant of "ReturnDict" matches argument type "List[<nothing>]"
+      err: No overload variant of "ReturnDict" matches argument type "List[Never]"
     - arg: "[('a', 'a')]"
       err: No overload variant of "ReturnDict" matches argument type "List[Tuple[str, str]]"
   main: |