For Web-Mercator Decimal Degrees is generally used. If you have a layer in Web-Mercator and you just want to see units in Web-Mercator you can choose decimal degrees from this drop down menu.
Or Just open a new ArcMap and see the units will be Unknown. Add the layer which is in Mercator projection and the units will be updated to show decimal degrees if the ...
Your problem is you're not iterating your cursor so row is never set, you should be using an arcpy.da cursor like:
with arcpy.da.SearchCursor(nitrogenStats,"SUM_Value") as nitrogenCursor:
for row in nitrogenCursor:
totalNitrogen = row
break # to ensure we only read the first value exit the loop
Or as a one-liner:
totalNitrogen = [row ...
In your tool's 'Parameters' section, you need to select the field parameter ('Nitrogen field'), and then set its 'Obtained From' setting to be the feature class parameter from which the list of fields should be derived ('Soil points').
You will have to set the data frame's coordinate system to EPSG::3857. Open the data frame's property page by right-clicking in the map (or Layers in table of contents) and select Properties.
Select the Coordinate System tab. In the search box, type 3857 and okay the dialog.
Depending on what's already occurred, the status bar should now display values ...
The tool you mention in your question is GridIndexFeatures_cartography, looking at the tool help you will see that the parameters for the width and height:
polygon_width (Optional) Width of the index polygon specifed in either
map or page units. If page units are being used the default value is 1
inch. If map units are being used the default is 1 ...
In looking for this answer I ran across ESRI documentation that indicates the Save Edits command does perform a stop/start on the edit session. So the edit session is being stopped (and saved), but then a new session is immediately being started.
Most editor methods for managing an edit session have a direct correlation to geodatabase methods. This is ...