fix python2 corner-case in torch.distributed.launch (#20996)

soumith · facebook-github-bot · commit f13fadd510fd · 2019-06-27T05:19:37.000-07:00
Summary: Small fix for the comment raised in 4cf7657#r33134850 Pull Request resolved: #20996 Differential Revision: D15991510 Pulled By: pietern fbshipit-source-id: 4e5a35864b5a4ec9402aa83a19c4a3ba0df2f01f
diff --git a/torch/distributed/launch.py b/torch/distributed/launch.py
@@ -228,7 +228,7 @@ def main():
         process.wait()
         if process.returncode != 0:
             raise subprocess.CalledProcessError(returncode=process.returncode,
-                                                cmd=process.args)
+                                                cmd=cmd)
 
 
 if __name__ == "__main__":
