Fix an if-statement

IAMconsortium · Nov 24, 2023 · f913d51 · f913d51
1 parent 323a9e1
commit f913d51
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/pyam/core.py b/pyam/core.py
@@ -154,7 +154,7 @@ def _init(self, data, meta=None, index=DEFAULT_META_INDEX, **kwargs):
                     f"Incompatible `index={index}` with `meta.index={meta.index.names}`"
                 )
             # if meta is in "long" format as key-value columns, cast to wide format
-            if all(meta.columns == ["key", "value"]):
+            if len(meta.columns) == 2 and all(meta.columns == ["key", "value"]):
                 meta = meta.pivot(values="value", columns="key")
                 meta.columns.name = None