EnvManager

Synthèse

EnvManager is a class for managing geoprocessing environments.

The environment settings set by the EnvManager class are temporary and are only set for the duration of the with block. At the completion of the with block, the environments passed to the EnvManager class will revert to their previous values (you do not need to manually reset the environment values). The code indented under the with statement can include a single line of code or multiple lines.

Syntaxe

EnvManager (**kwargs)

Paramètre	Explication	Type de données
**kwargs	Environment settings are passed as keyword arguments; one or more environments can be passed using the environment name. with arcpy.EnvManager(cellSize=10, extent='-16, 25, 44, 64'): # Code to be run with the environments set For a complete list of the environments and their names, see the env class.	Variant

Vue d’ensemble des méthodes

Méthode	Explication
reset ()	Resets the environment settings to their values prior to calling EnvManager.

Méthodes

reset ()

Exemple de code

EnvManager example 1

Use EnvManager to temporarily set the cellSize and extent environments before to running the PointDensity function.

import arcpy
feature_class = r'd:\data\data.gdb\cities'

with arcpy.EnvManager(cellSize=10, extent='-16, 25, 44, 64'):
    raster = arcpy.sa.PointDensity(feature_class, 'POP_RANK')

EnvManager example 2

Use EnvManager to temporarily set the workspace environment before accessing the ListFeatureClasses function.

import arcpy

with arcpy.EnvManager(workspace=r'd:\data\data.gdb'):
    feature_classes = arcpy.ListFeatureClasses(feature_type='POLYGON')

print('The polygon feature classes are {}'.format(', '.join(feature_classes)))