STY: Apply ruff/flake8-type-checking rule TCH001

TCH001 Move application import into a type-checking block

Author: DimitriPapadopoulos

nibabel/dataobj_images.py

@@ -14,14 +14,14 @@
 
 import numpy as np
 
-from .arrayproxy import ArrayLike
 from .deprecated import deprecate_with_version
 from .filebasedimages import FileBasedHeader, FileBasedImage
-from .fileholders import FileMap
 
 if ty.TYPE_CHECKING:
     import numpy.typing as npt
 
+    from .arrayproxy import ArrayLike
+    from .fileholders import FileMap
     from .filename_parser import FileSpec
 
 ArrayImgT = ty.TypeVar('ArrayImgT', bound='DataobjImage')

nibabel/imageclasses.py

@@ -10,11 +10,11 @@
 
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+
 from .analyze import AnalyzeImage
 from .brikhead import AFNIImage
 from .cifti2 import Cifti2Image
-from .dataobj_images import DataobjImage
-from .filebasedimages import FileBasedImage
 from .freesurfer import MGHImage
 from .gifti import GiftiImage
 from .minc1 import Minc1Image
@@ -25,6 +25,10 @@
 from .spm2analyze import Spm2AnalyzeImage
 from .spm99analyze import Spm99AnalyzeImage
 
+if TYPE_CHECKING:
+    from .dataobj_images import DataobjImage
+    from .filebasedimages import FileBasedImage
+
 # Ordered by the load/save priority.
 all_image_classes: list[type[FileBasedImage]] = [
     Nifti1Pair,

nibabel/spatialimages.py

@@ -139,11 +139,9 @@
 
 import numpy as np
 
-from .arrayproxy import ArrayLike
 from .casting import sctypes_aliases
 from .dataobj_images import DataobjImage
 from .filebasedimages import FileBasedHeader, FileBasedImage
-from .fileholders import FileMap
 from .fileslice import canonical_slicers
 from .orientations import apply_orientation, inv_ornt_aff
 from .viewers import OrthoSlicer3D
@@ -157,6 +155,9 @@
 if ty.TYPE_CHECKING:
     import numpy.typing as npt
 
+    from .arrayproxy import ArrayLike
+    from .fileholders import FileMap
+
 SpatialImgT = ty.TypeVar('SpatialImgT', bound='SpatialImage')
 SpatialHdrT = ty.TypeVar('SpatialHdrT', bound='SpatialHeader')