Fix OFF for new numpy errors

Summary: Error messages have changed around numpy version 2, making existing code fail.

Reviewed By: MichaelRamamonjisoa

Differential Revision: D65280674

fbshipit-source-id: b3ae613ea8f0f4ae20fb6e5e816314b8c10e6c65

Author: bottler

pytorch3d/io/off_io.py

@@ -84,7 +84,7 @@ def _read_faces_lump(
             )
             data = np.loadtxt(file, dtype=np.float32, ndmin=2, max_rows=n_faces)
     except ValueError as e:
-        if n_faces > 1 and "Wrong number of columns" in e.args[0]:
+        if n_faces > 1 and "number of columns" in e.args[0]:
             file.seek(old_offset)
             return None
         raise ValueError("Not enough face data.") from None

tests/test_io_off.py

@@ -286,15 +286,15 @@ def load(lines):
 
         lines2 = lines.copy()
         lines2[0] = "6 2 0"
-        with self.assertRaisesRegex(ValueError, "Wrong number of columns at line 5"):
+        with self.assertRaisesRegex(ValueError, "number of columns"):
             load(lines2)
 
         lines2[0] = "5 1 0"
-        with self.assertRaisesRegex(ValueError, "Wrong number of columns at line 5"):
+        with self.assertRaisesRegex(ValueError, "number of columns"):
             load(lines2)
 
         lines2[0] = "16 2 0"
-        with self.assertRaisesRegex(ValueError, "Wrong number of columns at line 5"):
+        with self.assertRaisesRegex(ValueError, "number of columns"):
             load(lines2)
 
         lines2[0] = "3 3 0"
@@ -312,7 +312,7 @@ def load(lines):
 
         lines2 = lines.copy()
         lines2[2] = "7.3 4.2 8.3 932"
-        with self.assertRaisesRegex(ValueError, "Wrong number of columns at line 2"):
+        with self.assertRaisesRegex(ValueError, "number of columns"):
             load(lines2)
 
         lines2[1] = "7.3 4.2 8.3 932"