PR #3841 in devel: two great new tracing functions

[Edward K. Ream]

PR #3841 (now in Leo's "devel" branch) adds two spectacularly useful tracing functions: g.traceUnique and g.traceUniqueClass. 

Both functions take one value argument (which can be of any type) and one keyword-only n argument that defaults to 2.

g.traceUnique(value) prints caller/value pairs:

    f"{g.callers(n):30} {str(value)}"

but only once for each unique combination of g.callers(n) and str(value).

g.traceUniqueClass(value) prints caller/class-name pairs:

    f"{g.callers(n):30} {value.__class__.__name__}"

Again, just once for each caller/class-name pair.

Summary

g.traceUniqueClass is perfect for discovering the proper annotation for any argument!

How did I ever live without these new functions?

Edward