another meshgrid fix for old pytorch

Summary: Try to fix circleci again. Reviewed By: nikhilaravi Differential Revision: D34752188 fbshipit-source-id: 5966c585b61d77df1d8dd97c24383cf74dfb1fae

another meshgrid fix for old pytorch
Summary: Try to fix circleci again. Reviewed By: nikhilaravi Differential Revision: D34752188 fbshipit-source-id: 5966c585b61d77df1d8dd97c24383cf74dfb1fae
1701b76a · Jeremy Reizenstein · Facebook GitHub Bot · 57a33b25 · 1701b76a
Commit 1701b76a authored Mar 11, 2022 by Jeremy Reizenstein Committed by Facebook GitHub Bot Mar 11, 2022
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pytorch3d/common/compat.py pytorch3d/common/compat.py +4 -1

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--- a/pytorch3d/common/compat.py
+++ b/pytorch3d/common/compat.py
@@ -66,7 +66,10 @@ def meshgrid_ij(
    """
    Like torch.meshgrid was before PyTorch 1.10.0, i.e. with indexing set to ij
    """
-    if "indexing" in torch.meshgrid.__kwdefaults__:
+    if (
+        torch.meshgrid.__kwdefaults__ is not None
+        and "indexing" in torch.meshgrid.__kwdefaults__
+    ):
        # PyTorch >= 1.10.0
        return torch.meshgrid(*A, indexing="ij")
    return torch.meshgrid(*A)