On 09/07/2012 09:42 AM, M Whitman wrote:
> Good Morning,
>
> I have been recently trying to define all of the features in a list but have
> been running into errors.
How proficient are you in Python? Could you possibly use terms which
make sense to someone who doesn't know this arcGIS program? I'm just
making a wild guess that that's what you're importing with the arcpy
import. When I do an internet search on arcpy, I see lots of tutorials,
training, etc. I didn't find a mailing list, but there probably is one.
The term that needs translating is "feature.'
> I would like to define the features similar to the following print
> statement. Any advice would be appreciated. I'm trying to transition my
> output from a text file to excel and if I can loop through my lists and
> define them that transition will be cleaner.
>
> Many Thanks,
>
> -Matt
>
> #Author: MGW
> #2012
> import os, datetime, sys, arcpy, xlrd
> from arcpy import env
> submission = "Rev.mdb"
> env.workspace = "C:/temp/"+submission+"/Water"
>
> #Get Submission totals
> fclist = sorted(arcpy.ListFeatureClasses("*"))
> for fc in fclist:
> print fc+"="+str(arcpy.GetCount_management(fc).getOutput(0))
>
> print "Complete"
> raw_input("Press ENTER to close this window")
>
> Output Generated
> WATER_Net_Junctions=312
> WS_Hyd=484
> WS_Mains=2752
> WS_Node=4722
> WS_Vlvs=1078
> WS_WatLats=3661
> WS_WatMtrs=3662
> WTRPLANTS_points=0
> WTRPUMPSTA_points=0
> WTRTANKS=0
> WTR_ARV=10
> WTR_MISC=0
> Complete
> Press ENTER to close this window
>
> #Get Submission totals
> fclist = sorted(arcpy.ListFeatureClasses("*"))
> for fc in fclist:
> fc=str(arcpy.GetCount_management(fc).getOutput(0))
> #TEST
> print WS_Hyd
>
There's no variable WS_Hyd, so what did you expect it to do? Do you
want to be able to fetch the values by name that were printed above? if
so, I'd suggest a dict, not a list. Lists don't have names for each
element, just indices.
>
>
> print "Complete"
> raw_input("Press ENTER to close this window")
>
> Output Generated
> Traceback (most recent call last):
> File "C:\Documents and Settings\mattheww\Desktop\Copy of QAQCexce_2.py",
> line 14, in <module>
> print WS_Hyd
> NameError: name 'WS_Hyd' is not defined
As a very rough start, perhaps you could try something like this.
Remember i don't have the docs, so the only clue I've got is the stuff
you printed from the first loop.
table = {}
fclist = sorted(arcpy.ListFeatureClasses("*"))
for fc in fclist:
table[fc] = +str(arcpy.GetCount_management(fc).getOutput(0))
Now, if you want to print the value for WS_Hyd, it should be available as
print "value = ", table["WS_Hyd"]
If you're sufficiently advanced, i could suggest a class-based solution
where you'd access items by
mytable.WS_Hyd
But if you're not yet familiar with class definition and attributes and
such, we'd better not go there.
--
DaveA
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