Update setup.py (#269)

setup.py

@@ -24,6 +24,18 @@ import glob
 import os
 import subprocess
 
+import subprocess
+import sys
+
+def install_torch():
+    try:
+        import torch
+    except ImportError:
+        subprocess.check_call([sys.executable, "-m", "pip", "install", "torch"])
+
+# Call the function to ensure torch is installed
+install_torch()
+
 import torch
 from setuptools import find_packages, setup
 from torch.utils.cpp_extension import CUDA_HOME, CppExtension, CUDAExtension