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How does the exists function in ArcGIS work?
This function tests for the existence of various data types including feature classes, tables, datasets, shapefiles, workspaces, layers, and files. The function returns a Boolean indicating whether the element exists.
How to check for the existence of data in a script?
To check for the existence of data in a script, use the Exists function. Tests for the existence of feature classes, tables, datasets, shapefiles, workspaces, layers, and other files in the current workspace at the time of execution. The function returns a Boolean indicating whether the element exists.
Can you use os.existence in ArcGIS on Windows?
In short, Windows doesn’t know about feature datasets or feature classes, so you cannot use Python existence functions like os.path.exists. Of course, everything in ArcGIS knows how to deal with catalog paths.
How does the exists function in Excel work?
Determines the existence of the specified data object. This function tests for the existence of various data types including feature classes, tables, datasets, shapefiles, workspaces, layers, and files. The function returns a Boolean indicating whether the element exists.
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. The name, path, or both of a feature class, table, dataset, layer, shapefile, workspace, or file to be checked for existence.
Can you delete the feature layer in the except code block?
Deleting the feature layer in the except code block won’t work. If you’re in the except code block, the feature layer failed to be created. I recommend adding a finally code block that will be executed whether the try block is sucessful or not. If you do this, you should make sure the feature layer exists before you can delete it.
When to delete GP object in arcgisscripting?
When I used arcgisscripting to create in-memory output layer with gp.makefeaturelayer, I would put it in a try/except block and delete the gp object in the except piece when the makefeaturelayer would fail.
How can I have the output layer from my makefeaturelayer tool get deleted?
Now when I am using arcpy, it looks like I need to close the idle window and open again in order to get the in-memory output layer to get deleted. How could I have the output layer from my makefeaturelayer tool get deleted in a try/except block?