Exists

Résumé

Determines the existence of the specified data object. Tests for the existence of feature classes, tables, datasets, shapefiles, workspaces, layers, and files in the current workspace. The function returns a Boolean indicating if the element exists.

Syntaxe

Exists (dataset)

Paramètre	Explication	Type de données
dataset	The name, path, or both of a feature class, table, dataset, layer, shapefile, workspace, or file to be checked for existence.	String

Valeur renvoyée

Type de données	Explication
Boolean	A Boolean value of True will be returned if the specified element exists.

Exemple de code

Exists example

Check for existence of specified data object.

import arcpy

# Set the current workspace
#
arcpy.env.workspace = "c:/base/data.gdb"

# Check for existence of data before deleting
#
if arcpy.Exists("roadbuffer"):
    arcpy.Delete_management("roadbuffer")