leibowitz · December 24, 2021 12:26 · Dec 24, 2021
diff --git a/get-packages.py b/get-packages.py
@@ -0,0 +1,67 @@
+import argparse
+import pkg_resources
+from datetime import datetime
+from distutils.version import LooseVersion
+
+import requests
+from packaging.version import LegacyVersion
+from packaging.specifiers import SpecifierSet
+
+
+def get_release_date(version):
+    if not version:
+        return None
+    time = version[0]['upload_time']
+    return datetime.fromisoformat(time)
+
+
+def release_date_string(d):
+    return 'Release date: {}'.format(d.strftime('%d/%m/%Y'))
+
+
+def release_str(version):
+    d = get_release_date(version)
+    if d:
+        return release_date_string(d)
+    return
+
+
+def get_latest(versions):
+    versions.sort(reverse=True)
+    for v in versions:
+        if v.pre:
+            continue
+        return v
+
+
+parser = argparse.ArgumentParser()
+parser.add_argument("filename")
+args = parser.parse_args()
+
+with open(args.filename) as f:
+    requirements = pkg_resources.parse_requirements(f.read())
+
+    for r in requirements:
+        print()
+        print('package {}'.format(r.name))
+        rsp = requests.get("https://pypi.org/pypi/{}/json".format(r.name))
+        if rsp:
+            response = rsp.json()
+            versions = list(response["releases"].keys())
+            if not versions:
+                continue
+            latest_version = get_latest([LegacyVersion(v) for v in versions])
+            release = release_str(response["releases"][str(latest_version)])
+            print('Latest: {} {}'.format(latest_version, release))
+            if r.specifier:
+                s = r.specifier
+                filtered_versions = s.filter(versions)
+                selected = list(filtered_versions)
+                if selected:
+                    release = release_str(response["releases"][str(selected[0])])
+                    print('Current: {} {}'.format(selected[0], release))
+                    continue
+
+            release = release_str(response["releases"][str(versions[0])])
+            print('Current: {} {}'.format(versions[0], release))
+
diff --git a/requirements.txt b/requirements.txt
@@ -0,0 +1,2 @@
+requests
+packaging