added the generate-setup action
diff --git a/Lib/packaging/util.py b/Lib/packaging/util.py
index e839320..4e5bd2c 100644
--- a/Lib/packaging/util.py
+++ b/Lib/packaging/util.py
@@ -1087,7 +1087,7 @@
Raises a PackagingFileError when a setup.py already exists.
"""
if os.path.exists("setup.py"):
- raise PackagingFileError("a setup.py file alreadyexists")
+ raise PackagingFileError("a setup.py file already exists")
with open("setup.py", "w", encoding='utf-8') as fp:
fp.write(_SETUP_TMPL % {'func': getsource(cfg_to_args)})