Delete all attribute indexes in a file geodatabase

[Brian_McLeer]

I have about 30 feature classes in an FGDB. I am looking for a script to remove all attribute indexes, as I will need to do this for multiple FGDBs eventually. 

My file path is:

"M:\\GIS_Data\\FileGeoDBs\Parks.gdb"

I started with this article

Remove all attribute indexes using arcpy 

But got stuck at line 02

1. dsc = arcpy.Describe("sap")  

[RandyBurton]

As a reference, here is the script from the link mentioned:

arcpy.env.workspace = "e:/crs/mobile/mobile.gdb"  
dsc = arcpy.Describe("sap")  
lstIndex = [i.name for i in dsc.Indexes][1:]  
print lstIndex  
arcpy.management.RemoveIndex("sap",lstIndex)  
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Line 2 is asking for a description of a feature class named "sap" inside the geodatabase.  The script then puts the index names in a list starting with the second item.  I assume this removes the FDO_OBJECTID from the list, but it keeps other items like FDO_SHAPE which you probably would not want to delete.

[JoshuaBixby]

If you want to remove all attribute indexes from all feature classes in a geodatabase, the following will get the job done:

import arcpy
import os

gdb = # path to geodatabase

walk = arcpy.da.Walk(gdb, datatype="FeatureClass")
for root, _, fcs in walk:
    for fc in fcs:
        fc = os.path.join(root, fc)
        desc = arcpy.Describe(fc)
        OIDFieldName = desc.OIDFieldName
        shapeFieldName = desc.shapeFieldName
        idxs = [
            i.name for i in desc.indexes
            if not any(f.name in (OIDFieldName, shapeFieldName) for f in i.fields)
        ]
        arcpy.RemoveIndex_management(fc, idxs)
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As much as I provide the code above, I can't say I see the logic behind removing all attribute indexes for most or all feature classes in a geodatabase.

UPDATE:  I had to alter my original code because I forgot that Remove Index will fail if either the OID or shape index is passed to it, both of which are returned when getting a list of indexes.