Zusammenfassung
Checks to see if a license is available to be checked out for a specific type of extension.
Learn more about licensing and extensions
Syntax
CheckExtension (extension_code)
Parameter | Erläuterung | Datentyp |
extension_code | Keyword for the extension product that is being checked.
| String |
Datentyp | Erläuterung |
String | There are four possible returned values for CheckExtension:
|
Codebeispiel
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))