fix: xformers

modules/import_hook.py

@@ -0,0 +1,18 @@
+import builtins
+import sys
+
+old_import = builtins.__import__
+IMPORT_BLACKLIST = []
+
+
+if "xformers" not in "".join(sys.argv):
+    IMPORT_BLACKLIST.append("xformers")
+
+
+def import_hook(*args, **kwargs):
+    if args[0] in IMPORT_BLACKLIST:
+        raise ImportError("Import of %s is blacklisted" % args[0])
+    return old_import(*args, **kwargs)
+
+
+builtins.__import__ = import_hook