feat: Add script to enumerate PyPI versions supporting Python 3.8 or lower

scripts/yank-old-versions.py

@@ -0,0 +1,46 @@
+import requests
+from packaging import version
+from packaging.specifiers import SpecifierSet
+
+def get_versions_supporting_python38(package_name):
+    # Fetch package information from PyPI
+    url = f"https://pypi.org/pypi/{package_name}/json"
+    response = requests.get(url)
+    if response.status_code != 200:
+        print(f"Failed to fetch data for {package_name}")
+        return []
+
+    data = response.json()
+    compatible_versions = []
+
+    for release, release_data in data['releases'].items():
+        if not release_data:  # Skip empty releases
+            continue
+        
+        # Check the 'requires_python' field
+        requires_python = release_data[0].get('requires_python')
+        
+        if requires_python is None:
+            # If 'requires_python' is not specified, assume it's compatible
+            compatible_versions.append(release)
+        else:
+            # Parse the requires_python specifier
+            try:
+                spec = SpecifierSet(requires_python)
+                if version.parse("3.8") in spec:
+                    compatible_versions.append(release)
+            except ValueError:
+                print(f"Invalid requires_python specifier for version {release}: {requires_python}")
+
+    return compatible_versions
+
+def main():
+    package_name = "aider-chat"  # Replace with your package name
+    compatible_versions = get_versions_supporting_python38(package_name)
+
+    print(f"Versions of {package_name} compatible with Python 3.8 or lower:")
+    for v in compatible_versions:
+        print(v)
+
+if __name__ == "__main__":
+    main()