import numpy.typing if and only if typing.TYPE_CHECKING

Author: benjello

STYLEGUIDE.md

@@ -45,7 +45,8 @@ import copy
 from typing import List
 
 import numpy
-from numpy.typing import ArrayLike
+if typing.TYPE_CHECKING:
+    from numpy.typing import ArrayLike
 
 from openfisca_country_template import entities
 
@@ -75,7 +76,9 @@ from openfisca_core import axes
 from numpy import ndarray
 from copy import deepcopy
 import typing
-import numpy.typing
+if typing.TYPE_CHECKING:
+    import numpy.typing
+
 
 def do(this: typing.List) -> numpy.typing.ArrayLike:
     that = deepcopy(this)

openfisca_core/tracers/computation_log.py

@@ -3,11 +3,11 @@
 import typing
 
 import numpy
-import numpy.typing
 
 from openfisca_core.indexed_enums import EnumArray
 
 if typing.TYPE_CHECKING:
+    import numpy.typing
     from openfisca_core.tracers import FullTracer, TraceNode
 
     Array = typing.Union[EnumArray, numpy.typing.ArrayLike]

openfisca_core/tracers/flat_trace.py

@@ -3,11 +3,11 @@
 import typing
 
 import numpy
-import numpy.typing
 
 from openfisca_core.indexed_enums import EnumArray
 
 if typing.TYPE_CHECKING:
+    import numpy.typing
     from openfisca_core.tracers import TraceNode, FullTracer
 
     Array = typing.Union[EnumArray, numpy.typing.ArrayLike]