Replace "Number" hints with "Real".

colour/algebra/extrapolation.py

@@ -28,8 +28,8 @@
     DTypeNumber,
     Literal,
     NDArrayFloat,
-    Number,
     Optional,
+    Real,
     Type,
     TypeInterpolator,
     Union,
@@ -140,8 +140,8 @@ def __init__(
         self,
         interpolator: Optional[TypeInterpolator] = None,
         method: Union[Literal["Linear", "Constant"], str] = "Linear",
-        left: Optional[Number] = None,
-        right: Optional[Number] = None,
+        left: Optional[Real] = None,
+        right: Optional[Real] = None,
         dtype: Optional[Type[DTypeNumber]] = None,
         *args: Any,
         **kwargs: Any,
@@ -154,9 +154,9 @@ def __init__(
         self.interpolator = optional(interpolator, self._interpolator)
         self._method: Union[Literal["Linear", "Constant"], str] = "Linear"
         self.method = optional(method, self._method)
-        self._right: Optional[Number] = None
+        self._right: Optional[Real] = None
         self.right = right
-        self._left: Optional[Number] = None
+        self._left: Optional[Real] = None
         self.left = left
 
         self._dtype: Type[DTypeNumber] = dtype
@@ -229,7 +229,7 @@ def method(self, value: Union[Literal["Linear", "Constant"], str]):
         self._method = value
 
     @property
-    def left(self) -> Optional[Number]:
+    def left(self) -> Optional[Real]:
         """
         Getter and setter property for left value to return for x < xi[0].
 
@@ -240,14 +240,14 @@ def left(self) -> Optional[Number]:
 
         Returns
         -------
-        :py:data:`None` or Number
+        :py:data:`None` or Real
             Left value to return for x < xi[0].
         """
 
         return self._left
 
     @left.setter
-    def left(self, value: Optional[Number]):
+    def left(self, value: Optional[Real]):
         """Setter for the **self.left** property."""
 
         if value is not None:
@@ -259,7 +259,7 @@ def left(self, value: Optional[Number]):
             self._left = value
 
     @property
-    def right(self) -> Optional[Number]:
+    def right(self) -> Optional[Real]:
         """
         Getter and setter property for right value to return for x > xi[-1].
 
@@ -270,14 +270,14 @@ def right(self) -> Optional[Number]:
 
         Returns
         -------
-        :py:data:`None` or Number
+        :py:data:`None` or Real
             Right value to return for x > xi[-1].
         """
 
         return self._right
 
     @right.setter
-    def right(self, value: Optional[Number]):
+    def right(self, value: Optional[Real]):
         """Setter for the **self.right** property."""
 
         if value is not None:

colour/colorimetry/spectrum.py

@@ -49,8 +49,8 @@
     List,
     Literal,
     NDArrayFloat,
-    Number,
     Optional,
+    Real,
     Sequence,
     Self,
     TYPE_CHECKING,
@@ -157,16 +157,16 @@ class SpectralShape:
     SpectralShape(360, 830, 1)
     """
 
-    def __init__(self, start: Number, end: Number, interval: Number) -> None:
-        self._start: Number = 360
-        self._end: Number = 780
-        self._interval: Number = 1
+    def __init__(self, start: Real, end: Real, interval: Real) -> None:
+        self._start: Real = 360
+        self._end: Real = 780
+        self._interval: Real = 1
         self.start = start
         self.end = end
         self.interval = interval
 
     @property
-    def start(self) -> Number:
+    def start(self) -> Real:
         """
         Getter and setter property for the spectral shape start.
 
@@ -177,14 +177,14 @@ def start(self) -> Number:
 
         Returns
         -------
-        Number
+        Real
             Spectral shape start.
         """
 
         return self._start
 
     @start.setter
-    def start(self, value: Number):
+    def start(self, value: Real):
         """Setter for the **self.start** property."""
 
         attest(
@@ -201,7 +201,7 @@ def start(self, value: Number):
         self._start = value
 
     @property
-    def end(self) -> Number:
+    def end(self) -> Real:
         """
         Getter and setter property for the spectral shape end.
 
@@ -212,14 +212,14 @@ def end(self) -> Number:
 
         Returns
         -------
-        Number
+        Real
             Spectral shape end.
         """
 
         return self._end
 
     @end.setter
-    def end(self, value: Number):
+    def end(self, value: Real):
         """Setter for the **self.end** property."""
 
         attest(
@@ -236,7 +236,7 @@ def end(self, value: Number):
         self._end = value
 
     @property
-    def interval(self) -> Number:
+    def interval(self) -> Real:
         """
         Getter and setter property for the spectral shape interval.
 
@@ -247,14 +247,14 @@ def interval(self) -> Number:
 
         Returns
         -------
-        Number
+        Real
             Spectral shape interval.
         """
 
         return self._interval
 
     @interval.setter
-    def interval(self, value: Number):
+    def interval(self, value: Real):
         """Setter for the **self.interval** property."""
 
         attest(
@@ -1577,7 +1577,7 @@ def trim(self, shape: SpectralShape) -> Self:
 
         return self
 
-    def normalise(self, factor: Number = 1) -> Self:
+    def normalise(self, factor: Real = 1) -> Self:
         """
         Normalise the spectral distribution using given normalization factor.
 
@@ -2592,7 +2592,7 @@ def trim(self, shape: SpectralShape) -> Self:
 
         return self
 
-    def normalise(self, factor: Number = 1) -> Self:
+    def normalise(self, factor: Real = 1) -> Self:
         """
         Normalise the multi-spectral distributions with given normalization
         factor.

colour/colorimetry/tristimulus_values.py

@@ -52,8 +52,8 @@
     ArrayLike,
     Literal,
     NDArrayFloat,
-    Number,
     Optional,
+    Real,
     Tuple,
     Union,
     cast,
@@ -277,7 +277,7 @@ def tristimulus_weighting_factors_ASTME2022(
     cmfs: MultiSpectralDistributions,
     illuminant: SpectralDistribution,
     shape: SpectralShape,
-    k: Optional[Number] = None,
+    k: Optional[Real] = None,
 ) -> NDArrayFloat:
     """
     Return a table of tristimulus weighting factors for given colour matching
@@ -448,7 +448,7 @@ def tristimulus_weighting_factors_ASTME2022(
             W[i_cm, i] = W[i_cm, i] + S[j] * Y[j, i]
 
     with sdiv_mode():
-        W *= cast(Number, optional(k_n, sdiv(100, np.sum(W, axis=0)[1])))
+        W *= optional(k_n, sdiv(100, np.sum(W, axis=0)[1]))
 
     _CACHE_TRISTIMULUS_WEIGHTING_FACTORS[hash_key] = np.copy(W)
 
@@ -539,7 +539,7 @@ def sd_to_XYZ_integration(
     sd: Union[ArrayLike, SpectralDistribution, MultiSpectralDistributions],
     cmfs: Optional[MultiSpectralDistributions] = None,
     illuminant: Optional[SpectralDistribution] = None,
-    k: Optional[Number] = None,
+    k: Optional[Real] = None,
     shape: Optional[SpectralShape] = None,
 ) -> NDArrayFloat:
     """
@@ -723,7 +723,7 @@ def sd_to_XYZ_integration(
 
     with sdiv_mode():
         k = cast(
-            Number, optional(k, sdiv(100, (np.sum(XYZ_b[..., 1] * S) * d_w)))
+            Real, optional(k, sdiv(100, (np.sum(XYZ_b[..., 1] * S) * d_w)))
         )
 
     XYZ = k * np.dot(R * S, XYZ_b) * d_w
@@ -740,7 +740,7 @@ def sd_to_XYZ_tristimulus_weighting_factors_ASTME308(
     sd: SpectralDistribution,
     cmfs: Optional[MultiSpectralDistributions] = None,
     illuminant: Optional[SpectralDistribution] = None,
-    k: Optional[Number] = None,
+    k: Optional[Real] = None,
 ) -> NDArrayFloat:
     """
     Convert given spectral distribution to *CIE XYZ* tristimulus values
@@ -885,7 +885,7 @@ def sd_to_XYZ_ASTME308(
     use_practice_range: bool = True,
     mi_5nm_omission_method: bool = True,
     mi_20nm_interpolation_method: bool = True,
-    k: Optional[Number] = None,
+    k: Optional[Real] = None,
 ) -> NDArrayFloat:
     """
     Convert given spectral distribution to *CIE XYZ* tristimulus values using
@@ -1088,7 +1088,7 @@ def sd_to_XYZ(
     sd: Union[ArrayLike, SpectralDistribution, MultiSpectralDistributions],
     cmfs: Optional[MultiSpectralDistributions] = None,
     illuminant: Optional[SpectralDistribution] = None,
-    k: Optional[Number] = None,
+    k: Optional[Real] = None,
     method: Union[Literal["ASTM E308", "Integration"], str] = "ASTM E308",
     **kwargs: Any,
 ) -> NDArrayFloat:
@@ -1276,7 +1276,7 @@ def msds_to_XYZ_integration(
     msds: Union[ArrayLike, SpectralDistribution, MultiSpectralDistributions],
     cmfs: Optional[MultiSpectralDistributions] = None,
     illuminant: Optional[SpectralDistribution] = None,
-    k: Optional[Number] = None,
+    k: Optional[Real] = None,
     shape: Optional[SpectralShape] = None,
 ) -> NDArrayFloat:
     """
@@ -1512,7 +1512,7 @@ def msds_to_XYZ_ASTME308(
     msds: MultiSpectralDistributions,
     cmfs: Optional[MultiSpectralDistributions] = None,
     illuminant: Optional[SpectralDistribution] = None,
-    k: Optional[Number] = None,
+    k: Optional[Real] = None,
     use_practice_range: bool = True,
     mi_5nm_omission_method: bool = True,
     mi_20nm_interpolation_method: bool = True,
@@ -1763,7 +1763,7 @@ def msds_to_XYZ(
     msds: Union[ArrayLike, SpectralDistribution, MultiSpectralDistributions],
     cmfs: Optional[MultiSpectralDistributions] = None,
     illuminant: Optional[SpectralDistribution] = None,
-    k: Optional[Number] = None,
+    k: Optional[Real] = None,
     method: Union[Literal["ASTM E308", "Integration"], str] = "ASTM E308",
     **kwargs: Any,
 ) -> NDArrayFloat:

colour/continuous/abstract.py

@@ -21,8 +21,8 @@
     DTypeFloat,
     Literal,
     NDArrayFloat,
-    Number,
     Optional,
+    Real,
     Self,
     Type,
     TypeExtrapolator,
@@ -747,7 +747,7 @@ def fill_nan(
         method: Union[
             Literal["Constant", "Interpolation"], str
         ] = "Interpolation",
-        default: Number = 0,
+        default: Real = 0,
     ) -> Self:
         """
         Fill NaNs in independent domain variable :math:`x` and corresponding

colour/continuous/multi_signals.py

@@ -23,8 +23,8 @@
     List,
     Literal,
     NDArrayFloat,
-    Number,
     Optional,
+    Real,
     Sequence,
     Self,
     TYPE_CHECKING,
@@ -1563,7 +1563,7 @@ def fill_nan(
         method: Union[
             Literal["Constant", "Interpolation"], str
         ] = "Interpolation",
-        default: Number = 0,
+        default: Real = 0,
     ) -> AbstractContinuousFunction:
         """
         Fill NaNs in independent domain variable :math:`x` and corresponding

colour/continuous/signal.py

@@ -33,8 +33,8 @@
     DTypeFloat,
     Literal,
     NDArrayFloat,
-    Number,
     Optional,
+    Real,
     Self,
     TYPE_CHECKING,
     Type,
@@ -928,7 +928,7 @@ def _fill_domain_nan(
         method: Union[
             Literal["Constant", "Interpolation"], str
         ] = "Interpolation",
-        default: Number = 0,
+        default: Real = 0,
     ):
         """
         Fill NaNs in independent domain variable :math:`x` using given method.
@@ -956,7 +956,7 @@ def _fill_range_nan(
         method: Union[
             Literal["Constant", "Interpolation"], str
         ] = "Interpolation",
-        default: Number = 0,
+        default: Real = 0,
     ):
         """
         Fill NaNs in corresponding range variable :math:`y` using given method.
@@ -1215,7 +1215,7 @@ def fill_nan(
         method: Union[
             Literal["Constant", "Interpolation"], str
         ] = "Interpolation",
-        default: Number = 0,
+        default: Real = 0,
     ) -> AbstractContinuousFunction:
         """
         Fill NaNs in independent domain variable :math:`x` and corresponding

colour/examples/examples_colour.py

@@ -140,8 +140,8 @@
 print("\n")
 
 message_box(
-    'Definitions mixing "ArrayLike" and "Number" parameters expect the '
-    '"Number" parameters to have a dimension less than the "ArrayLike" '
+    'Definitions mixing "ArrayLike" and "Real" parameters expect the '
+    '"Real" parameters to have a dimension less than the "ArrayLike" '
     "parameters."
 )
 XYZ_1 = np.array([28.00, 21.26, 5.27])