STY: Apply ruff preview rule RUF031

RUF031 Avoid parentheses for tuples in subscripts.

Author: DimitriPapadopoulos

nibabel/minc1.py

@@ -80,7 +80,7 @@ def get_data_dtype(self):
             dtt = np.dtype(np.float64)
         else:
             signtype = self._image.signtype.decode('latin-1')
-            dtt = _dt_dict[(typecode, signtype)]
+            dtt = _dt_dict[typecode, signtype]
         return np.dtype(dtt).newbyteorder('>')
 
     def get_data_shape(self):

nibabel/nicom/csareader.py

@@ -63,7 +63,7 @@ def get_csa_header(dcm_data, csa_type='image'):
         return None
     element_no = section_start + element_offset
     try:
-        tag = dcm_data[(0x29, element_no)]
+        tag = dcm_data[0x29, element_no]
     except KeyError:
         # The element could be missing due to anonymization
         return None

nibabel/nicom/tests/test_csareader.py

@@ -35,7 +35,7 @@ def test_csa_header_read():
             data2.add(element)
     assert csa.get_csa_header(data2, 'image') is None
     # Add back the marker - CSA works again
-    data2[(0x29, 0x10)] = DATA[(0x29, 0x10)]
+    data2[0x29, 0x10] = DATA[0x29, 0x10]
     assert csa.is_mosaic(csa.get_csa_header(data2, 'image'))