Resumen
The Describe function returns the following properties for ArcInfo WorkstationINFO Table Items. ArcInfo Workstation Items are accessed from the itemSet property of ArcInfo Workstation INFO Table Properties.
An ArcInfo Workstation Item returns a dataType of "ArcInfoItem".
Propiedades
| Propiedad | Explicación | Tipo de datos |
| alternateName (Sólo lectura) | The alternate name is another name you can use to refer to the item. It sometimes contains abbreviated names for items that otherwise have long descriptive names. Long item names often help for documentation purposes. Shorter names may be convenient for ad hoc usage. | String |
| isIndexed (Sólo lectura) | True if the item is indexed. Indexed items speed up selection operations on large INFO files. | Boolean |
| isPseudo (Sólo lectura) | True if the item is a pseudo item. | Boolean |
| isRedefined (Sólo lectura) | True if it is a redefined item. Redefined items can be subsets of regular items or can span multiple regular items. | Boolean |
| itemType (Sólo lectura) | The data type of the item. One of Binary, Character, Date, Floating, Integer, Number, and OID. | String |
| numberDecimals (Sólo lectura) | The number of digits to the right of the decimal place. This is only for item types that hold decimal numbers. | Integer |
| outputWidth (Sólo lectura) | The number of spaces used to display the item's values. | Integer |
| startPosition (Sólo lectura) | The starting position of a redefined item. | Integer |
| width (Sólo lectura) | The number of spaces (or bytes) used to store the item's values. | Integer |
Muestra de código
The following stand-alone script displays properties from all the ArcInfo Workstation Items in an ArcInfo Workstation Table.
import arcpy
# Create a list of Describe objects from the ArcInfo Table.
#
descList = arcpy.Describe("C:/data/crimefreq").itemSet
# Print properties about each item in the itemSet
#
for item in descList:
print item.name
print "%-22s %s" % (" Alternate name:", item.alternateName)
print "%-22s %s" % (" Is indexed:", item.isIndexed)
print "%-22s %s" % (" Is pseudo:", item.isPseudo)
print "%-22s %s" % (" Is redefined:", item.isRedefined)
print "%-22s %s" % (" Item type:", item.itemType)
print "%-22s %s" % (" Number of decimals:", item.numberDecimals)
print "%-22s %s" % (" Output width:", item.outputWidth)
print "%-22s %s" % (" Start position:", item.startPosition)
print "%-22s %s" % (" Width:", item.width)