Arcpy.mp Map Series- Field Name from code

AaronWorthley1

I'm trying to use the arcpy MapSeries Class to generate PNGs for each sheet, based on Code Example #2 here: http://pro.arcgis.com/en/pro-app/arcpy/mapping/mapseries-class.htm#C_GUID-5F34FFE0-FC62-481E-B960-A7D0554B7800.

I'd like to get the Index field name from the Map Series Index Layer to make the code flexible rather than having to hard-code in the field name in the pageRow property.

My attempts don't work, although it's easy enough to find the  I can't figure out how to pass a variable into the FIELD_NAME portion of the pageRow property.

using either  pageField = ms.pageNameField.name

or  pageField = str(ms.pageNameField.name)

fails on:  pageName = ms.pageRow.pageField

with: AttributeError: 'pageRow' object has no attribute 'pageField'

Is there any way to insert a variable into the Field Name attribute? layout.MapSeries.pageRow.FIELD_NAME

 

import arcpy

#get parameters
SaveLocation = arcpy.GetParameterAsText(0)

aprx = arcpy.mp.ArcGISProject("CURRENT")
l = aprx.listLayouts()[0]
if not l.mapSeries is None:
  ms = l.mapSeries
  if ms.enabled:
    for pageNum in range(1, ms.pageCount + 1):
      ms.currentPageNumber = pageNum
      pageField = ms.pageNameField.name

      pageName = ms.pageRow.pageField

      l.exportToPNG(SaveLocation + "\\" + pageName + ".png")

StephenM

I had this same question and got it to work using the getattr() function.

<SPAN class="keyword token">if</SPAN> ms<SPAN class="punctuation token">.</SPAN>enabled<SPAN class="punctuation token">:</SPAN>
    name_field <SPAN class="operator token">=</SPAN> ms<SPAN class="punctuation token">.</SPAN>pageNameField<SPAN class="punctuation token">.</SPAN>name
    <SPAN class="keyword token">for</SPAN> pageNum <SPAN class="keyword token">in</SPAN> range<SPAN class="punctuation token">(</SPAN><SPAN class="number token">1</SPAN><SPAN class="punctuation token">,</SPAN> ms<SPAN class="punctuation token">.</SPAN>pageCount <SPAN class="operator token">+</SPAN> <SPAN class="number token">1</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">:</SPAN>
        ms<SPAN class="punctuation token">.</SPAN>currentPageNumber <SPAN class="operator token">=</SPAN> pageNum
        pageName <SPAN class="operator token">=</SPAN> getattr<SPAN class="punctuation token">(</SPAN>ms<SPAN class="punctuation token">.</SPAN>pageRow<SPAN class="punctuation token">,</SPAN> name_field<SPAN class="punctuation token">)</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>