From 42a88927e591e622cea9f82e238e14670b2ae8c5 Mon Sep 17 00:00:00 2001
From: Keshav Priyadarshi <git@keshav.space>
Date: Wed, 6 Sep 2023 16:26:02 +0530
Subject: [PATCH] Handle invalid constraints sequence exception

- issue https://github.com/nexB/univers/issues/118

Signed-off-by: Keshav Priyadarshi <git@keshav.space>
---
 packagedb/api.py | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/packagedb/api.py b/packagedb/api.py
index 77bc9d94..6a5aec96 100644
--- a/packagedb/api.py
+++ b/packagedb/api.py
@@ -749,18 +749,23 @@ def resolve_versions(parsed_purl, vers):
 
     all_versions = get_all_versions(parsed_purl) or []
 
-    return [
-        str(
-            PackageURL(
-                type=parsed_purl.type,
-                namespace=parsed_purl.namespace,
-                name=parsed_purl.name,
-                version=version.string,
-            )
-        )
-        for version in all_versions
-        if version in version_range
-    ]
+    result = []
+
+    for version in all_versions:
+        try:
+            if version in version_range:
+                package_url = PackageURL(
+                    type=parsed_purl.type,
+                    namespace=parsed_purl.namespace,
+                    name=parsed_purl.name,
+                    version=version.string,
+                )
+                result.append(str(package_url))
+        except Exception:
+            # Skip the ``Invalid constraints sequence`` Exception
+            pass
+
+    return result
 
 def get_all_versions(purl: PackageURL):
     """