Displaying geometries in ArcPy with ArcGIS Pro

Question

I'm having an issue displaying a geometry in ArcPy. I'm not sure if it's my code or if it's a setting in ArcGIS Pro. The code runs successfully yet does not display the geometry.

Thoughts?

I was in ArcGIS Pro but I couldn't find it on the map. It would add it to the layers BUT I managed to find it on the map when I clicked on "Center on" with a right click on the layer in the contents.

# Add python codes here
import fileinput, os
import arcpy
from arcpy import env
env.workspace = "module_four_testing.gdb" 
env.overwriteOutput = True 

infile = 'square.txt'
featureclass = 'square'
arcpy.CreateFeatureclass_management("module_four_testing.gdb", featureclass, "Polygon")

with arcpy.da.InsertCursor(featureclass, ["SHAPE@"]) as cursor:
    array = arcpy.Array() # Creating the array for storing all Point objects.
    point = arcpy.Point() # Creating a Point object for one vertice.

    for line in fileinput.input(infile):     
        point.ID, point.X, point.Y = line.split()            
        array.add(point)
            
    polygon = arcpy.Polygon(array)
    cursor.insertRow([polygon])

fileinput.close()     
arcpy.Buffer_analysis(polygon, "poly_buffer", "150 METERS")    
arcpy.analysis.Erase("poly_buffer", polygon, "polygon2")

Answer 1

First of all take heed of @Vince's warning about using a spatial reference in the construction of the geometry, not doing what he suggests is shooting yourself in the foot.

As @user2856 suggests its unclear what you want to display, you add LAYERS to a map not a single geometry.

I'm assuming you are running this code from the python console inside ArcGIS Pro. If you are running it in an IDE then you would never expect it to add a layer to an active instance of ArcGIS Pro.

So if you are running your code in the python console then looking at setting the addOutputsToMap environment property.

Also check you have not turned off add to display in the geoprocessing application settings of ArcGIS Pro.