Use conda.cli.main rather than check_call

Author: malfet

scripts/test_install.py

@@ -68,7 +68,10 @@ def main() -> None:
         for idx, arg in enumerate(args):
             if arg == "install":
                 args.insert(idx +1, "-y")
-        subprocess.check_call(args)
+        import conda.cli
+        if conda.cli.main(args) != 0:
+            print(f"{cmd} failed")
+            sys.exit(1)
 
     # Check that torch is importable after install
     subprocess.check_call([sys.executable, "-c", "import torch;print('PyTorch version is ', torch.__version__)"])