Replace almost_equal_floats with math.isclose

pydantic/_internal/_utils.py

@@ -114,11 +114,6 @@ def update_not_none(mapping: dict[Any, Any], **update: Any) -> None:
     mapping.update({k: v for k, v in update.items() if v is not None})
 
 
-def almost_equal_floats(value_1: float, value_2: float, *, delta: float = 1e-8) -> bool:
-    """Return True if two floats are almost equal."""
-    return abs(value_1 - value_2) <= delta
-
-
 T = TypeVar('T')
 
 

pydantic/color.py

@@ -19,7 +19,7 @@
 from pydantic_core import CoreSchema, PydanticCustomError, core_schema
 from typing_extensions import deprecated
 
-from ._internal import _repr, _utils
+from ._internal import _repr
 from ._internal._schema_generation_shared import GetJsonSchemaHandler as _GetJsonSchemaHandler
 from .json_schema import JsonSchemaValue
 from .warnings import PydanticDeprecatedSince20
@@ -399,7 +399,7 @@ def parse_float_alpha(value: Union[None, str, float, int]) -> Optional[float]:
     except ValueError:
         raise PydanticCustomError('color_error', 'value is not a valid color: alpha values must be a valid float')
 
-    if _utils.almost_equal_floats(alpha, 1):
+    if math.isclose(alpha, 1):
         return None
     elif 0 <= alpha <= 1:
         return alpha

pydantic/v1/color.py

@@ -13,7 +13,7 @@
 from typing import TYPE_CHECKING, Any, Dict, Optional, Tuple, Union, cast
 
 from .errors import ColorError
-from .utils import Representation, almost_equal_floats
+from .utils import Representation
 
 if TYPE_CHECKING:
     from .typing import CallableGenerator, ReprArgs
@@ -310,7 +310,7 @@ def parse_float_alpha(value: Union[None, str, float, int]) -> Optional[float]:
     except ValueError:
         raise ColorError(reason='alpha values must be a valid float')
 
-    if almost_equal_floats(alpha, 1):
+    if math.isclose(alpha, 1):
         return None
     elif 0 <= alpha <= 1:
         return alpha

pydantic/v1/utils.py

@@ -63,7 +63,6 @@
     'is_valid_identifier',
     'deep_update',
     'update_not_none',
-    'almost_equal_floats',
     'get_model',
     'to_camel',
     'is_valid_field',
@@ -225,13 +224,6 @@ def update_not_none(mapping: Dict[Any, Any], **update: Any) -> None:
     mapping.update({k: v for k, v in update.items() if v is not None})
 
 
-def almost_equal_floats(value_1: float, value_2: float, *, delta: float = 1e-8) -> bool:
-    """
-    Return True if two floats are almost equal
-    """
-    return abs(value_1 - value_2) <= delta
-
-
 def generate_model_signature(
     init: Callable[..., None], fields: Dict[str, 'ModelField'], config: Type['BaseConfig']
 ) -> 'Signature':

pydantic/v1/validators.py

@@ -41,7 +41,7 @@
     is_none_type,
     is_typeddict,
 )
-from .utils import almost_equal_floats, lenient_issubclass, sequence_like
+from .utils import lenient_issubclass, sequence_like
 
 if TYPE_CHECKING:
     from typing_extensions import Literal, TypedDict
@@ -179,7 +179,7 @@ def number_multiple_validator(v: 'Number', field: 'ModelField') -> 'Number':
     field_type: ConstrainedNumber = field.type_
     if field_type.multiple_of is not None:
         mod = float(v) / float(field_type.multiple_of) % 1
-        if not almost_equal_floats(mod, 0.0) and not almost_equal_floats(mod, 1.0):
+        if not math.isclose(mod, 0.0) and not math.isclose(mod, 1.0):
             raise errors.NumberNotMultipleError(multiple_of=field_type.multiple_of)
     return v