SChunk.meta.get: Fix infinite recursion

src/blosc2/schunk.py

@@ -154,7 +154,10 @@ class Meta(Mapping):
     def get(self, key: str, default: Any = None) -> Any:
         """Return the value for `key` if `key` is in the dictionary, else return `default`.
         If `default` is not given, it defaults to ``None``."""
-        return self.get(key, default)
+        try:
+            return self[key]
+        except KeyError:
+            return default
 
     def __init__(self, schunk):
         self.schunk = schunk

tests/ndarray/test_metalayers.py

@@ -52,6 +52,10 @@ def test_metalayers(shape, chunks, blocks, urlpath, contiguous, dtype):
     assert "test" in a.schunk.meta
     assert a.schunk.meta["test"] == test_meta
 
+    assert a.schunk.meta.get("numpy") == numpy_meta
+    assert a.schunk.meta.get("error") is None
+    assert a.schunk.meta.get("error", "default") == "default"
+
     test_meta = {b"lorem": 4231}
     a.schunk.meta["test"] = test_meta
     assert a.schunk.meta["test"] == test_meta