Safer check in _get_metadata_version

twisted · May 21, 2024 · 6b85972 · 6b85972
1 parent 2af8e80
commit 6b85972
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/towncrier/_project.py b/src/towncrier/_project.py
@@ -47,8 +47,8 @@ def _get_package(package_dir: str, package: str) -> ModuleType:
 def _get_metadata_version(package: str) -> str | None:
     distributions = packages_distributions()
     distribution_names = distributions.get(package)
-    if not len(distribution_names) == 1:
-        # We can't determine the version if there are multiple distributions.
+    if not distribution_names or not len(distribution_names) == 1:
+        # We can only determine the version if there is exactly one matching distribution.
         return None
     try:
         return metadata_version(distribution_names[0])