topic overwriteOutput syntax in Transportation Questions

overwriteOutput syntax

Anonymous User — Sat, 11 Dec 2021 17:18:19 GMT

Original User: MCline19

I am very new to python and am having trouble getting the correct syntax to overwrite existing files. Using the syntax I have now, the process appends a "_1" to the new output file. Currently my syntax reads:

import arcpy

for x in sdeFiles: #sdeFiles is a list
     arcpy.env.overwriteOutput = True
     arcpy.FeatureClassToShapefile_conversion(x,'G:\GISAdmin\SDE_Backups\NewTempShapefiles')

Any advise on how to resolve this issue would be greatly appreciated. Thanks!

Re: overwriteOutput syntax

MichaelMiller2 — Mon, 02 Jul 2012 15:19:52 GMT

Try:

arcpy.env.overwriteOutput = 1

Re: overwriteOutput syntax

Anonymous User — Mon, 02 Jul 2012 15:30:10 GMT

Original User: MCline19

It still appended a "_1". 😞

Re: overwriteOutput syntax

KimOllivier — Sat, 11 Dec 2021 17:18:22 GMT

You have a missing r tag to make the path work as a raw string with backslashes, but that is not the issue.
The help clearly says that it will append _1 if the file exists, so it obviously does not honour the environment setting.
So just check if it exists and delete it yourself.

arcpy.env.workspace = "destination_folder"
if arcpy.Exists(x):
     arcpy.management.Delete(x)
arcpy.conversion.FeatureClassToShapefile(x,"destination_folder")

Re: overwriteOutput syntax

Anonymous User — Tue, 03 Jul 2012 14:54:34 GMT

Original User: MCline19

That works. Good advise! Thank you.

Re: overwriteOutput syntax

GerickeCook — Thu, 05 Jul 2012 14:44:26 GMT

I had similar issues until I got it to work in my code by using

overwriteOutput = 'True'