Place a Layer from a Geodatabase onto a Map (unopened) - Python code

[Anthony_R_McKay]

A Python project - A river flow analysis - I've generated my vector polyline object for the rivers (four classifications) - how do I move this into a map?

This fc is saved in the gdb - a map already exists.

I want to use Python to add some symbology, but the code I'm using needs the layer to be in a map.

What I need to know is the Python code to send a layer to an existing map from the gdb without opening ArcGIS Pro and doing it manually.

I'd also like to know how to change the line thickness symbology with Python eventually.

Any help would be appreciated.

[Anthony_R_McKay · Accepted solution]

Solved - but I had to create a lyrx Layer File and move the layer to the map from there - but the result is what I wanted - thanks to Dan for pointing me in the right direction.

[DanPatterson]

glad something I suggested work