python

[KalSsin]

Hi~~~~

This is the listfield. What did I do wrong?

import arcpy

featureclass = "C:\EsriTraining\ProVectorTiles\Create\SANDAG_Geology.gdb\Geology"
field_names = [f.name for f in arcpy.ListFields(featureclass)]
arcpy.featureclass = r"c:/data/municipal.gdb/hospitalsC:\EsriTraining\ProVectorTiles\Create\SANDAG_Geology.gdb\Geology"
field_names = [f.name for f in arcpy.ListFields(featureclass)]
arcpy.featureclass = r"C:\EsriTraining\ProVectorTiles\Create\SANDAG_Geology.gdb\Geology"
field_names = [f.name for f in arcpy.ListFields(featureclass)]
import arcpy

featureclass = r"C:\EsriTraining\ProVectorTiles\Create\SANDAG_Geology.gdb\Geology"
field_names = [f.name for f in arcpy.ListFields(featureclass
  File "<string>", line 4
    field_names = [f.name for f in arcpy.ListFields(featureclass
                                                               ^
SyntaxError: unexpected EOF while parsing
arcpy.featureclass = "C:\EsriTraining\ProVectorTiles\Create\SANDAG_Geology.gdb\Geology"
field_names = [f.name for f in arcpy.ListFields(featureclass)
  File "<string>", line 2
    field_names = [f.name for f in arcpy.ListFields(featureclass)
                                                                ^
SyntaxError: unexpected EOF while parsing
import arcpy

featureclass = r"C:\EsriTraining\ProVectorTiles\Create\SANDAG_Geology.gdb\Geology"
field_names = [f.name for f in arcpy.ListFields(featureclass)}
  File "<string>", line 4
    field_names = [f.name for f in arcpy.ListFields(featureclass)}
                                                                 ^
SyntaxError: invalid syntax
import arcpy

featureclass = r"C:\EsriTraining\ProVectorTiles\Create\SANDAG_Geology.gdb\Geology"
field_names = [f.name for f in arcpy.ListFields}
  File "<string>", line 4
    field_names = [f.name for f in arcpy.ListFields}
                                                   ^
SyntaxError: invalid syntax

[DanPatterson_Retired]

 [f.name for f in arcpy.ListFields]

[ must match ]  left and right brackets

[DonShawEsri · Accepted solution]

A few things are going on here. In the last example, you ended the ListFields function with a } instead of starting it with a  (. You should try setting the work space for your data. The code below works for me (Python 3). Make sure you are using the correct version of Python for things like the print statement.

import arcpy

arcpy.env.workspace = 'C:/data/earthquakes.gdb'

feature_class = 'earthquake_points'

field_names = [f.name for f in arcpy.ListFields(feature_class)]

print(field_names)

[KalSsin]

Thank you for your kind example.
I finally made it.