topic Re: Same python code works in Arcgis python window, but fails in pyScripter. in Python Questions

Same python code works in Arcgis python window, but fails in pyScripter.

ChroAhmed — Tue, 11 Nov 2014 18:36:29 GMT

Same python code works in Arcgis python window, but fails in pyScripter.

This code works in the arcgis python window but in PyScripter,it shows a warring message of:

(Exceptions. IO Error: "CandidateStations_Centroid" does not exist)!

import arcpy

path=("C:/Users/fazeel/Desktop/ExampleCase/LeicesterCity_Leeds")

arcpy.env.workspace=path

fields=arcpy.ListFields("CandidateStations_Centroid")

for fld in fields:

print fld.name

I wonder to know the reason of this warring message, any suggestion please?

Many thanks

Re: Same python code works in Arcgis python window, but fails in pyScripter.

DanPatterson_Retired — Tue, 11 Nov 2014 18:44:41 GMT

try this

path = "C:/Users/fazeel/Desktop/ExampleCase/LeicesterCity_Leeds" # non-tuple version

Re: Same python code works in Arcgis python window, but fails in pyScripter.

ChroAhmed — Tue, 11 Nov 2014 19:17:44 GMT

Dear Dan

Thank you very much for your response. I tried it, but again it showed the same warning message!

Best regards,

Re: Same python code works in Arcgis python window, but fails in pyScripter.

TimothyHales — Tue, 11 Nov 2014 19:51:43 GMT

It seems the reason this is working is because you have a layer named "CandidateStations_Centroid" in your ArcMap session, so it is recognized in the ListFields.

Your path is referencing a folder and not a GeoDatabase, so you would need to make sure you are pointing to the actual feature class which I am assuming is a shapefile (CandidateStations_Centroid.shp).

Re: Same python code works in Arcgis python window, but fails in pyScripter.

JasonScheirer — Wed, 12 Nov 2014 17:45:18 GMT

Putting a single value in (parens) doesn't turn it into a tuple.

>>> path=("C:/Users/fazeel/Desktop/ExampleCase/LeicesterCity_Leeds")

>>> type(path)

You'd need to add a comma to get that:

>>> path=("C:/Users/fazeel/Desktop/ExampleCase/LeicesterCity_Leeds",)

>>> type(path)

Re: Same python code works in Arcgis python window, but fails in pyScripter.

DanPatterson_Retired — Wed, 12 Nov 2014 19:34:36 GMT

always missing the comma...which is why I hate tuples

Re: Same python code works in Arcgis python window, but fails in pyScripter.

ChroAhmed — Sun, 23 Nov 2014 18:49:22 GMT

Dear Dan

Thank you very much you are true,once I provided the extension "gdb" it worked.

Many thanks once again