Revert "Delete .venv directory"

This reverts commit 5a2693bd9f.

.venv/lib/python3.9/site-packages/setuptools/_distutils/py38compat.py

@@ -0,0 +1,7 @@
+def aix_platform(osname, version, release):
+    try:
+        import _aix_support
+        return _aix_support.aix_platform()
+    except ImportError:
+        pass
+    return "%s-%s.%s" % (osname, version, release)