Latest Contributions by Luke_Pinner

Does arcpy.ListFiles() return the file list you expect? Have you inspected the returned list to make sure it's not empty? Have you tried setting a wildcard filter, e.g. arcpy.ListFiles('*.txt')? ... View more

Please can you post code, not screenshots of code. https://community.esri.com/t5/python-blog/code-formatting-the-community-version/ba-p/1007633   ... View more

You can create (and publish to AGOL) a group layer.  Group layers can contain multiple layers of the same type or different types. Terminology note - "feature layer" generally means an object that links to the actual data and can contain symbology, definition queries, attribute joins to other data among other things. A "feature class" is the data itself. ... View more

ETRS89 / UTM zone 33N is a projected coordinate system and uses metres as the horizontal units.  If you want decimal degrees, you need to use a geographic coordinate system (like you did with WGS84).  Have you tried selecting the ETRS89 geographic coordinate system? ... View more

arcpy.sa.ZonalStatistics outputs a raster not a table. You need arcpy.sa.ZonalStatisticsAsTable ... View more

Updating user environments on upgrade of Pro...? It's going to have potential for lots of issues - package versions, 3rd party channels. I treat conda envs as disposable, to be spun up and disposed of as required.  It's a lot easier to build a fresh env than fix or update one. What would really be useful is an updated conda.   ... View more

Multipart polygons cannot share borders. From the help: Keep in mind that parts in a multipart polygon are spatially separated. They can touch each other at vertices, but they cannot share edges or overlap.  ... View more

You might get some help if you posted in a general programming forum like Stack Overflow. This site is for Esri / ArcGIS software, not general python. ... View more

DOCELL returns!  You can mark this idea done Add DOCELL to Spatial Analyst  ... View more

It's a string expression and is evaluated outside the scope of your current code so has no knowledge about any of your variables. You need to insert the actual value into the string: class YourTool(object): def __init__(self): etc... def getParameterInfo(self): etc... def execute(self, parameters, messages): """The source code of the tool.""" inputdataset = parameters[0].valueAsText # getting the parameters count_rows = arcpy.GetCount_management(inputdataset) total_rows = int(count_rows.getOutput(0)) expression = ''' def getCitation(p_dataset_id): total_rows = {} if(total_rows == 5): ds=PanDataSet(p_dataset_id) return ds.citation '''.format(total_rows) ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Note - you can't indent the expression, or it won't be valid python syntax when the tool evaluates it - IndentationError: unexpected indent.  If you want your code to look cleaner and have the expression indented, you can use inspect.cleandoc(expression)  inspect — Python 2.7 documentation  inspect — Python 3.8 documentation  inspect. cleandoc (doc) Clean up indentation from docstrings that are indented to line up with blocks of code. All leading whitespace is removed from the first line. Any leading whitespace that can be uniformly removed from the second line onwards is removed. Empty lines at the beginning and end are subsequently removed. Also, all tabs are expanded to spaces. import inspect class YourTool(object): def __init__(self): etc... def getParameterInfo(self): etc... def execute(self, parameters, messages): """The source code of the tool.""" inputdataset = parameters[0].valueAsText # getting the parameters count_rows = arcpy.GetCount_management(inputdataset) total_rows = int(count_rows.getOutput(0)) expression = inspect.cleandoc(''' def getCitation(p_dataset_id): total_rows = {} if(total_rows == 5): ds=PanDataSet(p_dataset_id) return ds.citation '''.format(total_rows))‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more

I've never used ApplySymbologyFromLayer in a toolbox so can't comment on the issue, but what I do that works is set the symbology property of output layer parameters, and the symbology is automagically applied when the output parameter is set at the end of my execute method: class Tool(object): def getParameterInfo(self): params = [] params[0] = arcpy.Parameter( displayName="Output Raster Layer", name="out_raster_lyr", datatype="GPRasterLayer", parameterType="Derived", direction="Output") params[0].symbology = r'path\to\symbology.lyrx' return params ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ def execute(self, parameters, messages): layer = do_something_and_return_a_layer() arcpy.SetParameter(0, layer) # Layer gets added to the map with symbology applied without me manually applying it. ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more