Zoom to layer on the map view arcpy.mp

MarvisKisakye1

I am attempting to zoom to layer on the map view NOT the layout view. I am aware that I can zoom to a layer using the code below

cam = c_project.activeView.camera

ext = arcpy.Describe(layer).extent

cam.setExtent(ext)

c_project.save()

 

My issue is that c_project.activeView returns None because the project is not yet open. 

@JeffBarrette @JeffMoulds 

JeffreyBarrette

Marvis, this is a known limitation with ActiveMap and ActiveView and is documented under ArcGISProject.

"The activeMap property will return the map associated with either an active map view or the active map frame on an active layout view. The activeView property will either return a MapView object if a map view is active or it will return a Layout object if a layout view is active. Both of these properties are intended for scripts to be executed in the application, such as scripts run in the Python pane or those associated with a script tool. If no views are active, both properties will return None. These properties will always return a None value when a script is run outside of the application, because views are only relevant when the application is open. The MapView returned from the activeView property is the only way to change the extent associated with a map view. There are multiple functions available on the MapView class that allow you to change the extent, such as, the camera property, panToExtent, ZoomToAllLayers, and ZoomToBookmarks."

Jeff - arcpy.mp and Layout teams