I needed to dump all of the domains in my file geodatabase so missing values can be identified. The script runs fine if the domain name has no spaces but, unfortunately this one has many multi-word domain names. Renaming the domains isn't practical and ModelBuilder is not an option. I can list (ListDomains) all of the domains, regardless of the name and loop through everyone of them. The Toolbox version successfully but there are too many domains for that. Here is the script.

import arcpy

domains = arcpy.da.ListDomains(pathname)

fileout = open('filename', 'w')

for domain in domains:

    name = domain.name


    txtline = name,'\n'


    arcpy.DomainToTable_management(inTable,name,outTable + name,"Code","Description")

  • Which version of ArcGIS?
    – KHibma
    Aug 12, 2019 at 12:52
  • ArcGIS 10.6, Pro 2.3
    – scramjet
    Aug 12, 2019 at 13:00
  • 2,4 is newest, if you can't update and try that I'd suggest sending this directly to Tech Support. It obviously shouldn't crash, so it sounds like it might be a bug.
    – KHibma
    Aug 12, 2019 at 13:24
  • 1
    What's the error? Aug 12, 2019 at 23:01

1 Answer 1


I'd make use of Validate Table Name and GISPro's Alter Domain. You can alter your domain names using Validate Table Name to remove spaces.

Untested since I don't have ArcGIS Pro:

inGdb = r"Domained\gdb"
outGdb = r"output\gdb"

print ("importing")
import arcpy
import os

print ("listing domains")
domains = [d.name for d in arcpy.da.ListDomains (inGdb)]
for dom in domains:
    print (dom)
    #get valid table name
    altDom = arcpy.ValidateTableName (dom, outGdb)
    print (altDom)
    if altDom != dom:
        #alter domain to valid name
        arcpy.AlterDomain_management (inGdb, dom, altDom)
    outTab = os.path.join (outGdb, altDom)
    arcpy.DomainToTable_management (inGdb, altDom, outTab, "Code", "Description")
    if altDom != dom:
        #alter name back to original
        arcpy.AlterDomain_management (inGdb, altDom, dom)

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