From 1701b76a31e3e8c97d51b49dfcaa060762ab3764 Mon Sep 17 00:00:00 2001
From: Jeremy Reizenstein <reizenstein@fb.com>
Date: Fri, 11 Mar 2022 01:14:59 -0800
Subject: [PATCH] another meshgrid fix for old pytorch

Summary: Try to fix circleci again.

Reviewed By: nikhilaravi

Differential Revision: D34752188

fbshipit-source-id: 5966c585b61d77df1d8dd97c24383cf74dfb1fae
---
 pytorch3d/common/compat.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pytorch3d/common/compat.py b/pytorch3d/common/compat.py
index 1b81c386..74a8dd69 100644
--- 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)