optional frozen version numbers

requirements.txt

+attrdict==2.0.1
+certifi==2023.11.17
+charset-normalizer==3.3.2
+h5py==3.1.0
+hdf5storage==0.1.19
+idna==3.6
+julia==0.5.7
+numpy==1.24.4
+nvidia-cublas-cu11==11.10.3.66
+nvidia-cuda-nvrtc-cu11==11.7.99
+nvidia-cuda-runtime-cu11==11.7.99
+nvidia-cudnn-cu11==8.5.0.96
+pandas==1.3.3
+Pillow==10.1.0
+protobuf==3.9.2
+python-dateutil==2.8.2
+pytz==2023.3.post1
+PyYAML==6.0.1
+requests==2.31.0
+six==1.16.0
+torch==1.13.1
+torchvision==0.14.1
+tqdm==4.66.1
+typing_extensions==4.9.0
+urllib3==2.1.0