CheckExtension

Resumen

Checks to see if a license is available to be checked out for a specific type of extension.

Sintaxis

CheckExtension (extension_code)

Parámetro	Explicación	Tipo de datos
extension_code	Keyword for the extension product that is being checked. 3D—ArcGIS 3D Analyst extension Aeronautical—ArcGIS Aviation Charting Airports—ArcGIS Aviation Airports ArcScan—ArcScan Bathymetry—ArcGIS Bathymetry DataReviewer—ArcGIS Data Reviewer DataInteroperability—Extensión ArcGIS Data Interoperability para Desktop Defense—ArcGIS Defense Mapping Foundation—ArcGIS Production Mapping GeoStats—Extensión ArcGIS Geostatistical Analyst JTX—ArcGIS Workflow Manager (Classic) Desktop LocationReferencing Nautical—ArcGIS Maritime Network—Extensión ArcGIS Network Analyst Publisher—ArcGIS Publisher Schematics—Extensión ArcGIS Schematics SMPAsiaPacific—StreetMap Premium Asia Pacific SMPEurope—StreetMap Premium Europe SMPJapan—StreetMap Premium Japan SMPLatinAmerica—StreetMap Premium Latin America SMPMiddleEastAfrica—StreetMap Premium Middle East Africa SMPNorthAmerica—StreetMap Premium North America Spatial—Extensión ArcGIS Spatial Analyst Tracking—Extensión ArcGIS Tracking Analyst	String

Valor de retorno

Tipo de datos	Explicación
String	There are four possible returned values for CheckExtension: Available—The requested license is available to be set. Unavailable—The requested license is unavailable to be set. NotLicensed—The requested license is not valid. Failed—A system failure occurred during request.

Muestra de código

CheckExtension example

Check for availability of ArcGIS 3D Analyst extension before checking it out.

import arcpy

class LicenseError(Exception):
    pass

try:
    if arcpy.CheckExtension("3D") == "Available":
        arcpy.CheckOutExtension("3D")
    else:
        # raise a custom exception
        raise LicenseError

    arcpy.env.workspace = "c:/GrosMorne"
    arcpy.HillShade_3d("WesternBrook", "wbrook_hill", 300)
    arcpy.Aspect_3d("WesternBrook", "wbrook_aspect")
    arcpy.CheckInExtension("3D")

except LicenseError:
    print("3D Analyst license is unavailable")
except arcpy.ExecuteError:
    print(arcpy.GetMessages(2))