update setup.py
Summary:
Detectron2 requires PyTorch >= 1.4 now.
Pull Request resolved:
@@ -11,7 +11,7 @@ import torch
from torch.utils.cpp_extension import CUDA_HOME, CppExtension, CUDAExtension
torch_ver = [int(x) for x in torch.__version__.split(".")[:2]]
-assert torch_ver >= [1, 3], "Requires PyTorch >= 1.3"
+assert torch_ver >= [1, 4], "Requires PyTorch >= 1.4"
def get_version():
