How to check of a field exists in arcpy.FieldMappings

JoseSanchez

Hello everyone,

Is there a way to check if a field exits in a arcpy.FieldMappings

fieldmappings = arcpy.FieldMappings()
fieldmappings.addTable(fc1)
fieldmappings.addTable(fc2)

if fieldmappings.findFieldMapIndex("SHAPE_LEN")   ??????  how to check that this field exists to remove it?
  print"not found"

KaushikMysorekar

One way of doing it is:

fldIdx <SPAN class="operator token">=</SPAN> fieldmappings<SPAN class="punctuation token">.</SPAN>findFieldMapIndex<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"<field>"</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="keyword token">if</SPAN> fldIdx <SPAN class="operator token">></SPAN> <SPAN class="operator token">-</SPAN><SPAN class="number token">1</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp; fieldmappings<SPAN class="punctuation token">.</SPAN>removeFieldMap<SPAN class="punctuation token">(</SPAN>fldIdx<SPAN class="punctuation token">)</SPAN>‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>