listMaps() returns empty list when the project has a map

AngelaSchirck

Hey all,

I'm trying to create a script and am stuck at a very SIMPLE step.  In the code below the listMaps() function is returning an empty list so I'm getting an index out of range error.  This project DOES have one map in it, any ideas why it's not "seeing" it? (All necessary packages are imported in the project).

When I print aprx I get: <arcpy._mp.ArcGISProject object at 0x0000021769973640>

When I delete the index [0] from m and print m it shows [ ] (empty list)

Thanks

```

def sdDraft(outdir, sde_path):  ## Output directory (project_path in main).
    project_name = os.path.join(outdir, 'Enterprise.aprx')  ## Change as needed
    service_name = 'CensusTest'  ## Change as needed
    sddraft_filename = service_name + '.sddraft'
    sddraft_output_filename = os.path.join(outdir, sddraft_filename)
    sd_filename = service_name + '.sd'
    sd_output_filename = os.path.join(outdir, sd_filename)

# Layer(s) to publish
    aprx = arcpy.mp.ArcGISProject(project_name)
    m = aprx.listMaps('Enterprise')[0]  ## Change as needed
    print(m)
```

  

TylerT

@AngelaSchirck,

@AlfredBaldenweck is correct.  The parameter you are passing into listMaps is what ESRI calls the wildcard, although it behaves more like a regex match, seeking that exact name, except if you pass the star wildcard (see image below).  You are correct, if the wildcard is left empty, you should get a full list of all your maps.  If you are not getting a list of your maps, then something is wrong with your code (wrong path?).  Here are a few examples of how one could use the wildcard.  Notice, list maps returns maps objects, if you want names, you need to reach into the name property.  I created a list of names below using a list comprehension on the name property.  Also, notice, as @AlfredBaldenweck mentioned, the index ([0]) is just for accessing single maps (or slicing [1:3] multiple).

A word of caution...ArcGIS Pro allows same name maps as seen above.  The user will have to use manual conventions to avoid this ambiguity if trying to access maps from listMaps().

HTH.

Tyler