# Import arcpy module import arcpy  arcpy.env.workspace = "G:\ChrisGIS\WDFW_NWIFC_EVENT_17100101.gdb" arcpy.env.overwriteOutput = "True"                def GetFieldMappings(inputFC, targetFC, dico):     field_mappings = arcpy.FieldMappings()     field_mappings.addTable(inputFC)      for input, output in dico.iteritems():         field_map = arcpy.FieldMap()         field_map.addInputField(inputFC, input)                 field = field_map.outputField                 field.name = output         field_map.outputField = field         field_mappings.addFieldMap(field_map)         del field, field_map      return field_mappings  #Variables inputFC = "WDFW_CHFA_2HEM_evt_1" targetFC = "WDFW_CHFA_2HEM_evt_olay_1"  dico = {'Permanent_Identifier': 'Permanent_ID',                 'STRM_NAME':        'LLID_STRM_NAME',     'DATE_SRVY': 'SOURCE_DATE',     'SPPCODE': 'SPECRCODE',     'SRC_AGENCY': 'SOURCE_AGENCY',     'SRC_WHO': 'SOURCE_WHO'}      Mapper = GetFieldMappings(inputFC, targetFC, dico) # Process: Append arcpy.Append_management(arcpy.env.workspace+"\\"+inputFC, arcpy.env.workspace+"\\"+targetFC,"NO_TEST",Mapper)Solved! Go to Solution.
# Import arcpy module
import arcpy
arcpy.env.overwriteOutput = True
from os import path as p
        
def GetFieldMappings(inputFC, targetFC, dico):
    field_mappings = arcpy.FieldMappings()
    field_mappings.addTable(inputFC)
    for input, output in dico.iteritems():
        field_map = arcpy.FieldMap()
        field_map.addInputField(inputFC, input)        
        field = field_map.outputField        
        field.name = output
        field_map.outputField = field
        field_mappings.addFieldMap(field_map)
        del field, field_map
    return field_mappings
#Variables
dico = {'Permanent_Identifier': 'Permanent_ID',
                'STRM_NAME':        'LLID_STRM_NAME',
    'DATE_SRVY': 'SOURCE_DATE',
    'SPPCODE': 'SPECRCODE',
    'SRC_AGENCY': 'SOURCE_AGENCY',
    'SRC_WHO': 'SOURCE_WHO'}
arcpy.env.workspace = r"G:\ChrisGIS\COMBO_fishdist_events"
for ws in arcpy.ListWorkspaces("*", "FileGDB"):
 listFCS = arcpy.ListTables("WDFW*evt")
 arcpy.env.workspace = ws
 for inputFC in listFCS:
  targetFC = inputFC +"_olay"   
  Mapper = GetFieldMappings(inputFC, targetFC, dico)
  # Process: Append
  arcpy.Append_management(p.join(ws,inputFC), p.join(ws,targetFC),"NO_TEST",Mapper)
  print 'Appended "{0}" to "{1}" in {2}'.format(inputFC, targetFC, p.basename(ws))
 
					
				
		
# Import arcpy module import arcpy arcpy.env.overwriteOutput = True from os import path as p def GetFieldMappings(inputFC, targetFC, dico): field_mappings = arcpy.FieldMappings() field_mappings.addTable(inputFC) for input, output in dico.iteritems(): field_map = arcpy.FieldMap() field_map.addInputField(inputFC, input) field = field_map.outputField field.name = output field_map.outputField = field field_mappings.addFieldMap(field_map) del field, field_map return field_mappings #Variables dico = {'Permanent_Identifier': 'Permanent_ID', 'STRM_NAME': 'LLID_STRM_NAME', 'DATE_SRVY': 'SOURCE_DATE', 'SPPCODE': 'SPECRCODE', 'SRC_AGENCY': 'SOURCE_AGENCY', 'SRC_WHO': 'SOURCE_WHO'} arcpy.env.workspace = r"G:\ChrisGIS\COMBO_fishdist_events" for ws in arcpy.ListWorkspaces("*", "FileGDB"): listFCS = arcpy.ListTables("WDFW*evt") arcpy.env.workspace = ws for inputFC in listFCS: targetFC = inputFC +"_olay" Mapper = GetFieldMappings(inputFC, targetFC, dico) # Process: Append arcpy.Append_management(p.join(ws,inputFC), p.join(ws,targetFC),"NO_TEST",Mapper) print 'Appended "{0}" to "{1}" in {2}'.format(inputFC, targetFC, p.basename(ws))
After running this script I am again getting this error :
Runtime error <class 'arcgisscripting.ExecuteError'>: Failed to execute. Parameters are not valid. ERROR 000732: Target Dataset: Dataset G:\ChrisGIS\COMBO_fishdist_events\WDFW_NWIFC_EVENT_17100102.gdb\WDFW_CCT_2HEM_evt_olay does not exist or is not supported Failed to execute (Append).
I feel like I am close, but I do not understand why WDFW_NWIFC_EVENT_17100102.gdb\WDFW_CCT_2HEM_evt_olay cannot be found when it is supposed to be created. This is also the 2nd geodatabase in my list, so it seems like it goes through WDFW_NWIFC_EVENT_17100101 without generating any errors.....
 
					
				
		
Okay, I added the create table and here are some results
Appended "WDFW_CCT_2HEM_evt" to "WDFW_CCT_2HEM_evt_olay" in WDFW_NWIFC_EVENT_17100102.gdb
Appended "WDFW_CHFA_2HEM_evt" to "WDFW_CHFA_2HEM_evt_olay" in WDFW_NWIFC_EVENT_17100102.gdb
Appended "WDFW_CHMF_2HEM_evt" to "WDFW_CHMF_2HEM_evt_olay" in WDFW_NWIFC_EVENT_17100102.gdb
Appended "WDFW_CHSP_2HEM_evt" to "WDFW_CHSP_2HEM_evt_olay" in WDFW_NWIFC_EVENT_17100102.gdb
Runtime error <type 'exceptions.RuntimeError'>: FieldMappings: Error in adding table to field mappings
How can this error come to pass after a few tables have already been appended?
After I got these results I went into ArcCatalog and check the geodatabase it was working in and there were no _olay tables. I am assuming this is because the script hit the error before it finished?
 
					
				
		
# Import arcpy module
import arcpy
arcpy.env.overwriteOutput = True
from os import path as p
        
def GetFieldMappings(inputFC, dico):
    field_mappings = arcpy.FieldMappings()
    field_mappings.addTable(inputFC)
    for input, output in dico.iteritems():
        field_map = arcpy.FieldMap()
        field_map.addInputField(inputFC, input)        
        field = field_map.outputField        
        field.name = output
        field_map.outputField = field
        field_mappings.addFieldMap(field_map)
        del field, field_map
    return field_mappings
#Variables
dico = {'Permanent_Identifier': 'Permanent_ID',
                'STRM_NAME':        'LLID_STRM_NAME',
    'DATE_SRVY': 'SOURCE_DATE',
    'SPPCODE': 'SPECRCODE',
    'SRC_AGENCY': 'SOURCE_AGENCY',
    'SRC_WHO': 'SOURCE_WHO'}
arcpy.env.workspace = r"G:\ChrisGIS\COMBO_fishdist_events"
for ws in arcpy.ListWorkspaces("*", "FileGDB"):
    arcpy.env.workspace = ws
    listFCS = arcpy.ListTables("WDFW*evt")
    for inputFC in listFCS:
        outTab = r'in_memory\%s_2' %inputFC
        targetFC = inputFC +"_olay"   
        # Process: Append
        Mapper = GetFieldMappings(inputFC, dico)
        arcpy.CreateTable_management(ws, outTab))
        arcpy.Merge_management([p.join(ws,inputFC),outTab],p.join(ws,targetFC),Mapper)
        print 'Appended "{0}" to "{1}" in {2}'.format(inputFC, targetFC, p.basename(ws))
					
				
			
			
				
			
			
				
			
			
			
			
			
			
		 
					
				
		
Runtime error 'outTab' not defined.
arcpy.Merge_management([p.join(ws,inputFC), outTab],p.join(ws,targetFC),Mapper)
I tried to change it to outTable, and got the same error.
arcpy.Merge_management([p.join(ws,inputFC), outTable],p.join(ws,targetFC),Mapper)
I also removed outTab all together but then I get this error
Runtime error <class 'arcgisscripting.ExecuteError'>: ERROR 000605: Output WDFW_CCT_2HEM_evt_olay already exists within G:\ChrisGIS\COMBO_fishdist_events\WDFW_NWIFC_EVENT_17100102.gdb. Failed to execute (Merge).
