Change huggingface hub revision delimiter to '@', add hf_hub reference for eca_nfnet_l0 model as an example.

timm/models/hub.py

@@ -61,8 +61,8 @@ def has_hf_hub(necessary=False):
 
 
 def hf_split(hf_id):
-    rev_split = hf_id.split('#')
-    assert 0 < len(rev_split) <= 2, 'hf_hub id should only contain one # character to identify revision.'
+    rev_split = hf_id.split('@')
+    assert 0 < len(rev_split) <= 2, 'hf_hub id should only contain one @ character to identify revision.'
     hf_model_id = rev_split[0]
     hf_revision = rev_split[-1] if len(rev_split) > 1 else None
     return hf_model_id, hf_revision

timm/models/nfnet.py

@@ -106,6 +106,7 @@ default_cfgs = dict(
         url='', pool_size=(7, 7), input_size=(3, 224, 224), test_input_size=(3, 288, 288)),
     eca_nfnet_l0=_dcfg(
         url='https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-weights/ecanfnet_l0_ra2-e3e9ac50.pth',
+        hf_hub='timm/eca_nfnet_l0',
         pool_size=(7, 7), input_size=(3, 224, 224), test_input_size=(3, 288, 288), crop_pct=1.0),
 
     nf_regnet_b0=_dcfg(