Backport PR #503 on branch 3.x (PR: Update load_dicom to accommodat…

…e Pydicom 3.0) (#507)

Co-authored-by: Ryan Clary <[email protected]>

spyder_kernels/utils/iofuncs.py

@@ -506,9 +506,16 @@ def load_dicom(filename):
 
         name = osp.splitext(osp.basename(filename))[0]
         try:
-            data = dicomio.read_file(filename, force=True)
+            # For Pydicom 3/Python 3.10+
+            data = dicomio.dcmread(filename, force=True)
         except TypeError:
-            data = dicomio.read_file(filename)
+            data = dicomio.dcmread(filename)
+        except AttributeError:
+            # For Pydicom 2/Python 3.9-
+            try:
+                data = dicomio.read_file(filename, force=True)
+            except TypeError:
+                data = dicomio.read_file(filename)
         arr = data.pixel_array
         return {name: arr}, None
     except Exception as error:

spyder_kernels/utils/tests/test_iofuncs.py

@@ -11,9 +11,9 @@
 """
 
 # Standard library imports
+import copy
 import io
 import os
-import copy
 
 # Third party imports
 from PIL import ImageFile
@@ -350,6 +350,10 @@ def test_save_load_hdf5_files(tmp_path):
     assert repr(iofuncs.load_hdf5(h5_file)) == repr(expected)
 
 
+@pytest.mark.skipif(
+    os.environ.get("USE_CONDA") == "true",
+    reason="Pydicom is not installed correctly in Conda envs"
+)
 def test_load_dicom_files():
     """Check that we can load DICOM files."""
     # This test pass locally but we need to set the variable below for it to