undo&redo_implementation

1 files changed, 33 insertions, 0 deletions

diff --git a/venv/Lib/site-packages/astroid/brain/brain_argparse.py b/venv/Lib/site-packages/astroid/brain/brain_argparse.py
new file mode 100644
index 0000000..d489911
--- /dev/null
+++ b/venv/Lib/site-packages/astroid/brain/brain_argparse.py
@@ -0,0 +1,33 @@
+from astroid import MANAGER, arguments, nodes, inference_tip, UseInferenceDefault
+
+
+def infer_namespace(node, context=None):
+    callsite = arguments.CallSite.from_call(node)
+    if not callsite.keyword_arguments:
+        # Cannot make sense of it.
+        raise UseInferenceDefault()
+
+    class_node = nodes.ClassDef("Namespace", "docstring")
+    class_node.parent = node.parent
+    for attr in set(callsite.keyword_arguments):
+        fake_node = nodes.EmptyNode()
+        fake_node.parent = class_node
+        fake_node.attrname = attr
+        class_node.instance_attrs[attr] = [fake_node]
+    return iter((class_node.instantiate_class(),))
+
+
+def _looks_like_namespace(node):
+    func = node.func
+    if isinstance(func, nodes.Attribute):
+        return (
+            func.attrname == "Namespace"
+            and isinstance(func.expr, nodes.Name)
+            and func.expr.name == "argparse"
+        )
+    return False
+
+
+MANAGER.register_transform(
+    nodes.Call, inference_tip(infer_namespace), _looks_like_namespace
+)