CheckOutExtension

Resumen

Retrieves the license from the License Manager.

Once the extension license has been retrieved by the script, tools using that extension can be used. Once a script is finished with an extension's tools, the CheckInExtension function should be used to return the license to the License Manager so other applications can use it. All checked-out extension licenses and set product licenses are returned to the License Manager when a script completes.

Debate

Sugerencia:

Solamente es necesario establecer el producto y las extensiones dentro de las secuencias de comandos independientes. Si está ejecutando las herramientas desde la ventana de Python o utilizando herramientas de secuencia de comandos, el producto ya está establecido dentro de la aplicación y las extensiones activas están basadas en el cuadro de diálogo Extensiones.

Sintaxis

CheckOutExtension (extension_code)

Parámetro	Explicación	Tipo de datos
extension_code	Keyword for the extension product that is being checked. 3D —Extensión ArcGIS 3D Analyst Aeronautical —ArcGIS for Aviation: Charting Airports —ArcGIS for Aviation: Airports ArcScan —ArcScan Bathymetry —ArcGIS for Maritime: Bathymetry Business —ArcGIS Business Analyst DataReviewer —ArcGIS Data Reviewer for Desktop DataInteroperability —Extensión de Interoperabilidad de datos para Desktop de ArcGIS. Defense —Esri Defense Solution Foundation —Esri Production Mapping GeoStats —ArcGIS Geostatistical Analyst extension Highways —Esri Roads and Highways JTX —ArcGIS Workflow Manager for Desktop LocationReferencing —ArcGIS Pipeline Referencing Nautical —ArcGIS for Maritime: Charting Network —Extensión ArcGIS Network Analyst Schematics —Extensión ArcGIS Schematics Spatial —Extensión ArcGIS Spatial Analyst StreetMap —StreetMap Premium for ArcGIS Tracking —Extensión ArcGIS Tracking Analyst Licensing and extensions	String

Valor de retorno

Tipo de datos	Explicación
String	There are three possible returned values for CheckOutExtension: NotInitialized —No desktop license has been set. Unavailable —The requested license is unavailable to be set. CheckedOut —The license has been set successfully.

Muestra de código

CheckOutExtension example

Check out 3D extension for use by tools.

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))