Fix import metadatalib

Author: patrickvonplaten

setup.py

@@ -169,7 +169,7 @@ def run(self):
 extras["dev"] = extras["quality"] + extras["test"] + extras["training"]
 
 install_requires = [
-    deps["importlib_metadata"] + ";python_version<'3.8'",  # importlib_metadata for Python versions that don't have it
+    deps["importlib_metadata"],
     deps["filelock"],
     deps["huggingface-hub"],
     deps["numpy"],

src/diffusers/dependency_versions_table.py

@@ -7,6 +7,7 @@
     "filelock": "filelock",
     "flake8": "flake8>=3.8.3",
     "huggingface-hub": "huggingface-hub",
+    "importlib_metadata": "importlib_metadata",
     "isort": "isort>=5.5.4",
     "numpy": "numpy",
     "pytest": "pytest",