Error in Empty Field Length

Krishna_94

In ArcGIS Pro I have a feature class called SWNDMNHL which has the list of fields, in which some fields have empty length, but when I'm fetching this fields from Python arcpy library it gives me a random field length instead of empty field length. How should i validate the field length?

 

for fld in arcpy.ListFields('SWNDMNHL'):
   print(f'Field : {str(fld.name)} and Length : {str(fld.length)} ')

 

It gives me below output:
Field : COVER_LVL and Length : 8, Field : COV_SLB_LVL and Length : 8, Field : COV_THKNS and Length : 2

Any suggestions?

Thank you!!

bixb0012

I don't believe the fieldDescription class is exposed through ArcPy, or at least the Length property you are looking for under fieldDescription.  That said, you don't need it to be since you can simply check the field type and return an empty string if it is anything but Text.  Something like:

 

for fld in arcpy.ListFields('SWNDMNHL'):
   print(f'Field : {fld.name} and Length : {fld.length if fld.type == "String" else ""} ')