cache: Do not raise error when there are no files to remove

Instead log a warning and continue (to log that we removed 0 files)
pypa · Sep 10, 2021 · ef67b53 · ef67b53
1 parent c928d89
commit ef67b53
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diff --git a/news/10459.trivial.rst b/news/10459.trivial.rst
@@ -0,0 +1,2 @@
+Do not raise error when there are no files to remove with ``pip cache``.
+Instead log a warning and continue (to log that we removed 0 files).
diff --git a/src/pip/_internal/commands/cache.py b/src/pip/_internal/commands/cache.py
@@ -175,7 +175,7 @@ def remove_cache_items(self, options: Values, args: List[Any]) -> None:
             files += self._find_http_files(options)
 
         if not files:
-            raise CommandError("No matching packages")
+            logger.warning("No matching packages")
 
         for filename in files:
             os.unlink(filename)