This is currently (v1.33) a preview feature. See release notes re: call hierarchy.
A call hierarchy view shows all calls from or to a function and allows
you to drill into callers of callers and calls of calls. The image
below shows that function foo is being called by bar and bang, then
bar is being called by bang and fib.
This is a preview feature and there aren’t any extensions currently
providing real data for it. However, if you are an extension author,
we invite you to validate our proposed API. If you are interested,
there is a sample extension for testing:
https://github.com/jrieken/demo-callhierarchy.
There is already a bound command for this, editor.showCallHierarchy. You will have to see whether any python extension has support for this feature.
———- Update ——————-
v1.43 Release notes: https://github.com/microsoft/vscode-docs/blob/vnext/release-notes/v1_43.md#call-hierarchy-support-for-javascript-and-typescript
In the v1.50 Insiders’ Build is the ability to dismiss/exclude selected entries in the call heirarchy (possibly after you have reviewed that entry). See https://github.com/microsoft/vscode/issues/98155
Note the X dismiss button in the demo:
[thanks to @VonC for finding this PR and pointing it out]