ArcMap

CheckOutExtension

摘要

通过许可管理器检索许可。

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.

说明

语法

CheckOutExtension (extension_code)
参数说明数据类型
extension_code

Keyword for the extension product that is being checked.

  • 3D —ArcGIS 3D Analyst 扩展模块
  • Datareviewer —ArcGIS Data Reviewer for Desktop
  • DataInteroperability —适用于 Desktop 的 ArcGIS Data Interoperability 扩展模块
  • Airports —ArcGIS for Aviation: Airports
  • Aeronautical —ArcGIS for Aviation: Charting
  • Bathymetry —ArcGIS for Maritime: Bathymetry
  • Nautical —ArcGIS for Maritime: Charting
  • GeoStats —ArcGIS Geostatistical Analyst 扩展模块
  • Network —ArcGIS Network Analyst 扩展模块
  • Spatial —ArcGIS Spatial Analyst 扩展模块
  • Schematics —ArcGIS Schematics 扩展模块
  • Tracking —ArcGIS Tracking Analyst 扩展模块
  • JTX —ArcGIS Workflow Manager for Desktop
  • ArcScan —ArcScan
  • Business —Business Analyst
  • Defense —Esri Defense Solution
  • Foundation —Esri Production Mapping
  • Highways —Esri Roads and Highways
  • StreetMap —StreetMap
String

返回值

数据类型说明
String

CheckOutExtension 可能会返回以下三个值之一：

  • NotInitialized —尚未设置任何 Desktop 许可。
  • Unavailable —申请的许可不存在，无法设置。
  • CheckedOut —已成功设置许可。

代码示例

CheckOutExtension 示例

检出工具所使用的 3D 扩展模块。

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))

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