really drop python<=3.7 support (#1232)

Signed-off-by: Tomasz Kłoczko <kloczek@github.com>
Co-authored-by: David Hewitt <mail@davidhewitt.dev>

tests/benchmarks/complete_schema.py

@@ -253,8 +253,8 @@ def input_data_lax():
         'field_frozenset_bytes': frozenset([f'{i}'.encode() for i in range(100)]),
         'field_frozenset_bytes_con': frozenset([f'{i}'.encode() for i in range(42)]),
         'field_tuple_var_len_any': ('a', b'b', True, 1.0, None),
-        'field_tuple_var_len_float': tuple((i + 0.5 for i in range(100))),
-        'field_tuple_var_len_float_con': tuple((i + 0.5 for i in range(42))),
+        'field_tuple_var_len_float': tuple(i + 0.5 for i in range(100)),
+        'field_tuple_var_len_float_con': tuple(i + 0.5 for i in range(42)),
         'field_tuple_fix_len': ('a', 1, 1.0, True),
         'field_dict_any': {'a': 'b', 1: True, 1.0: 1.0},
         'field_dict_str_float': {f'{i}': i + 0.5 for i in range(100)},

tests/benchmarks/test_complete_benchmark.py

@@ -50,8 +50,8 @@ def test_complete_valid():
         'field_frozenset_bytes': frozenset([f'{i}'.encode() for i in range(100)]),
         'field_frozenset_bytes_con': frozenset([f'{i}'.encode() for i in range(42)]),
         'field_tuple_var_len_any': ('a', b'b', True, 1.0, None),
-        'field_tuple_var_len_float': tuple((i + 0.5 for i in range(100))),
-        'field_tuple_var_len_float_con': tuple((i + 0.5 for i in range(42))),
+        'field_tuple_var_len_float': tuple(i + 0.5 for i in range(100)),
+        'field_tuple_var_len_float_con': tuple(i + 0.5 for i in range(42)),
         'field_tuple_fix_len': ('a', 1, 1.0, True),
         'field_dict_any': {'a': 'b', 1: True, 1.0: 1.0},
         'field_dict_str_float': {f'{i}': i + 0.5 for i in range(100)},

tests/serializers/test_generator.py

@@ -5,13 +5,11 @@
 
 
 def gen_ok(*things):
-    for thing in things:
-        yield thing
+    yield from things
 
 
 def gen_error(*things):
-    for thing in things:
-        yield thing
+    yield from things
     raise ValueError('oops')
 
 

tests/test_errors.py

@@ -397,7 +397,7 @@ def test_error_type(error_type, message, context):
 
 
 def test_all_errors_covered():
-    listed_types = set(error_type for error_type, *_ in all_errors)
+    listed_types = {error_type for error_type, *_ in all_errors}
     actual_types = {e['type'] for e in list_all_errors()}
     assert actual_types == listed_types
 
@@ -464,7 +464,7 @@ def test_custom_context_for_simple_error():
 def test_all_errors():
     errors = list_all_errors()
     # print(f'{len(errors)=}')
-    assert len(errors) == len(set(e['type'] for e in errors)), 'error types are not unique'
+    assert len(errors) == len({e['type'] for e in errors}), 'error types are not unique'
     # insert_assert(errors[:4])
     assert errors[:4] == [
         {
@@ -689,7 +689,7 @@ def singular_raise_py_error(v: Any) -> Any:
                 s.validate_python('anything')
             assert exc_info.value.__cause__ is None
         else:
-            raise AssertionError('Unhandled result: {}'.format(expected_result))
+            raise AssertionError(f'Unhandled result: {expected_result}')
 
 
 def test_validation_error_cause_traceback_preserved():

tests/validators/test_date.py

@@ -3,7 +3,7 @@
 import re
 from datetime import date, datetime, time, timedelta, timezone
 from decimal import Decimal
-from typing import Any, Dict
+from typing import Any
 
 import pytest
 
@@ -199,7 +199,7 @@ def test_date_strict_json_ctx():
         ({'gt': date(2000, 1, 1)}, '2000-01-01', Err('Input should be greater than 2000-01-01 [type=greater_than,')),
     ],
 )
-def test_date_kwargs(kwargs: Dict[str, Any], input_value: date, expected: Err | date):
+def test_date_kwargs(kwargs: dict[str, Any], input_value: date, expected: Err | date):
     v = SchemaValidator({'type': 'date', **kwargs})  # type: ignore
     if isinstance(expected, Err):
         with pytest.raises(ValidationError, match=re.escape(expected.message)):

tests/validators/test_decimal.py

@@ -4,7 +4,7 @@
 import math
 import re
 from decimal import Decimal
-from typing import Any, Dict
+from typing import Any
 
 import pytest
 from dirty_equals import FunctionCheck, IsStr
@@ -157,7 +157,7 @@ def test_decimal_strict_json(input_value, expected):
         ({'lt': 0.123456}, 1, Err('Input should be less than 0.123456')),
     ],
 )
-def test_decimal_kwargs(py_and_json: PyAndJson, kwargs: Dict[str, Any], input_value, expected):
+def test_decimal_kwargs(py_and_json: PyAndJson, kwargs: dict[str, Any], input_value, expected):
     v = py_and_json({'type': 'decimal', **kwargs})
     if isinstance(expected, Err):
         with pytest.raises(ValidationError, match=re.escape(expected.message)):

tests/validators/test_list.py

@@ -438,7 +438,7 @@ class ListInputTestCase:
 LAX_MODE_INPUTS: List[Any] = [
     (1, 2, 3),
     frozenset((1, 2, 3)),
-    set((1, 2, 3)),
+    {1, 2, 3},
     deque([1, 2, 3]),
     {1: 'a', 2: 'b', 3: 'c'}.keys(),
     {'a': 1, 'b': 2, 'c': 3}.values(),

tests/validators/test_tuple.py

@@ -165,7 +165,7 @@ def test_tuple_validate(input_value, expected, variadic_item_index, items):
 )
 def test_tuple_validate_iterator(variadic_item_index, items):
     v = SchemaValidator(core_schema.tuple_schema(items_schema=items, variadic_item_index=variadic_item_index))
-    assert v.validate_python((x for x in [1, 2, '3'])) == (1, 2, 3)
+    assert v.validate_python(x for x in [1, 2, '3']) == (1, 2, 3)
 
 
 @pytest.mark.parametrize(