fix(types): commons

openfisca_core/commons/formulas.py

@@ -1,17 +1,15 @@
-from typing import Any, Dict, Sequence, TypeVar
+from typing import Any, Dict, Union
 
 from openfisca_core.types import Array, ArrayLike
 
 import numpy
 
-T = TypeVar("T")
-
 
 def apply_thresholds(
-    input: Array[float],
+    input: Array[numpy.float_],
     thresholds: ArrayLike[float],
     choices: ArrayLike[float],
-) -> Array[float]:
+) -> Array[numpy.float_]:
     """Makes a choice based on an input and thresholds.
 
     From a list of ``choices``, this function selects one of these values
@@ -40,7 +38,7 @@ def apply_thresholds(
 
     """
 
-    condlist: Sequence[Array[bool]]
+    condlist: list[Union[Array[numpy.bool_], bool]]
     condlist = [input <= threshold for threshold in thresholds]
 
     if len(condlist) == len(choices) - 1:
@@ -58,7 +56,9 @@ def apply_thresholds(
     return numpy.select(condlist, choices)
 
 
-def concat(this: ArrayLike[str], that: ArrayLike[str]) -> Array[str]:
+def concat(
+    this: Union[Array[Any], ArrayLike[str]], that: Union[Array[Any], ArrayLike[str]]
+) -> Array[numpy.str_]:
     """Concatenates the values of two arrays.
 
     Args:
@@ -88,8 +88,8 @@ def concat(this: ArrayLike[str], that: ArrayLike[str]) -> Array[str]:
 
 def switch(
     conditions: Array[Any],
-    value_by_condition: Dict[float, T],
-) -> Array[T]:
+    value_by_condition: Dict[float, Any],
+) -> Array[Any]:
     """Mimicks a switch statement.
 
     Given an array of conditions, returns an array of the same size,
@@ -120,4 +120,4 @@ def switch(
 
     condlist = [conditions == condition for condition in value_by_condition.keys()]
 
-    return numpy.select(condlist, value_by_condition.values())
+    return numpy.select(condlist, tuple(value_by_condition.values()))

openfisca_core/commons/misc.py

@@ -1,4 +1,4 @@
-from typing import TypeVar
+from typing import Any, TypeVar, Union
 
 from openfisca_core.types import Array
 
@@ -43,7 +43,7 @@ def empty_clone(original: T) -> T:
     return new
 
 
-def stringify_array(array: Array) -> str:
+def stringify_array(array: Union[Array[Any], None]) -> str:
     """Generates a clean string representation of a numpy array.
 
     Args:

openfisca_core/commons/rates.py

@@ -6,10 +6,10 @@
 
 
 def average_rate(
-    target: Array[float],
+    target: Array[numpy.float_],
     varying: ArrayLike[float],
     trim: Optional[ArrayLike[float]] = None,
-) -> Array[float]:
+) -> Array[numpy.float_]:
     """Computes the average rate of a target net income.
 
     Given a ``target`` net income, and according to the ``varying`` gross
@@ -41,7 +41,7 @@ def average_rate(
 
     """
 
-    average_rate: Array[float]
+    average_rate: Array[numpy.float_]
 
     average_rate = 1 - target / varying
 
@@ -62,10 +62,10 @@ def average_rate(
 
 
 def marginal_rate(
-    target: Array[float],
-    varying: Array[float],
+    target: Array[numpy.float_],
+    varying: Array[numpy.float_],
     trim: Optional[ArrayLike[float]] = None,
-) -> Array[float]:
+) -> Array[numpy.float_]:
     """Computes the marginal rate of a target net income.
 
     Given a ``target`` net income, and according to the ``varying`` gross
@@ -97,7 +97,7 @@ def marginal_rate(
 
     """
 
-    marginal_rate: Array[float]
+    marginal_rate: Array[numpy.float_]
 
     marginal_rate = +1 - (target[:-1] - target[1:]) / (varying[:-1] - varying[1:])
 

openfisca_tasks/lint.mk

@@ -39,7 +39,9 @@ lint-doc-%:
 ## Run static type checkers for type errors.
 check-types:
 	@$(call print_help,$@:)
-	@mypy openfisca_core/entities openfisca_core/projectors
+	@mypy \
+		openfisca_core/commons \
+		openfisca_core/types.py
 	@$(call print_pass,$@:)
 
 ## Run code formatters to correct style errors.

setup.cfg

@@ -65,9 +65,12 @@ python_files        = **/*.py
 testpaths           = tests
 
 [mypy]
-ignore_missing_imports = True
-install_types       = True
-non_interactive     = True
+disallow_any_unimported = true
+ignore_missing_imports = true
+install_types       = true
+non_interactive     = true
+plugins             = numpy.typing.mypy_plugin
+python_version      = 3.9
 
 [mypy-openfisca_core.commons.tests.*]
 ignore_errors       = True