issue pandas-dev#50885

Author: JustinAmstadt

web/pandas_web.py

@@ -36,6 +36,8 @@
 import sys
 import time
 import typing
+from packaging import version
+from itertools import groupby
 
 import feedparser
 import jinja2
@@ -223,9 +225,20 @@ def home_add_releases(context):
         with open(pathlib.Path(context["target_path"]) / "releases.json", "w") as f:
             json.dump(releases, f, default=datetime.datetime.isoformat)
 
-        for release in releases:
+        non_obsolete_releases = []
+
+        # This is necessary for the versions to be properly grouped
+        releases = sorted(releases, key=lambda release:version.parse(release["tag_name"]), reverse=True)
+        
+        for _, group in groupby(releases, key=lambda release: 
+            ((version.parse(release["tag_name"]).major), version.parse(release["tag_name"]).minor)):
+            
+            non_obsolete_releases.append(max(group, key=lambda release: version.parse(release["tag_name"])))
+
+        for release in non_obsolete_releases:
             if release["prerelease"]:
                 continue
+
             published = datetime.datetime.strptime(
                 release["published_at"], "%Y-%m-%dT%H:%M:%SZ"
             )

web/tests/test_pandas_web.py

@@ -0,0 +1,22 @@
+import yaml
+import os
+# Not working in code. the pandas directory is set up for this, but not the web directory
+from pandas_web import Preprocessors
+import pytest
+
+@pytest.fixture # I think this is fine
+def test_home_releases_versions():
+    context_path = os.path.join('pandas/config.yml')
+
+    # As it is, the home_add_releases function pull data from the github release page
+    # with an http request. After I run the function, I print the data out.
+    # In order to run custom data, you would need to modify the function in some way
+    with open(context_path, 'r') as context_file:
+        context = yaml.safe_load(context_file)
+
+        context["target_path"] = "build"
+
+        Preprocessors.home_add_releases(context)
+
+        for release in context["releases"]:
+            print(release)