Merge branch 'master' into patch-10

python · BobTheBuidler · Sep 26, 2025 · Sep 26, 2025 · Sep 26, 2025 · Sep 26, 2025
commit 4ea974e3ef5a45afc2902e5c75f455bea9625538
diff --git a/mypyc/irbuild/for_helpers.py b/mypyc/irbuild/for_helpers.py
@@ -1237,6 +1237,11 @@ def get_expr_length(builder: IRBuilder, expr: Expression) -> int | None:
     # TODO: extend this, set and dict comps can be done as well but will
     # need special logic to consider the possibility of key conflicts.
     # Range, enumerate, zip are all simple logic.
+
+    # we might still be able to get the length directly from the type
+    rtype = builder.node_type(expr)
+    if isinstance(rtype, RTuple):
+        return len(rtype.types)
     return None