topic Re: .pyc tool cannot find earlier output in Python Questions

.pyc tool cannot find earlier output

deleted-user-mGKzsOLEnzmy — Sat, 11 Dec 2021 21:53:36 GMT

Creating a python toolbox using the ESRI .pyt format. This tool is very straight forward (at least in theory) in that one polygon input generates three outputs: a convex hull layer for the input polys, a centroid layer for the input polys, and an intersection of the convex hull and centroids.

    def execute(self, parameters, messages):
        """Execute linear orientation analysis."""
        input = parameters[0].valueAsText
        baseName = arcpy.Describe(input).baseName
                
        arcpy.env.workspace = arcpy.Describe(input).catalogPath
        
        #overwrite doesn't work, tool still fails if output already exists
        arcpy.env.overwriteOutput = True
        
        #output names
        mbg = "{0}_MBG".format(baseName)
        cents = "{0}_centroids".format(baseName)
        intersectOutput = "{0}_MBG_Intersect".format(baseName)
                        
        #output
        arcpy.MinimumBoundingGeometry_management(input,
                                                 mbg,
                                                 "CONVEX_HULL",
                                                 "NONE", "#",
                                                 "MBG_FIELDS")
        arcpy.FeatureToPoint_management(input, 
                                        cents,
                                        "INSIDE")
        
        arcpy.Intersect_analysis(in_features = [mbg, cents],
                                 out_feature_class = intersectOutput,
                                 join_attributes = "ALL", 
                                 cluster_tolerance = "-1 Unknown", 
                                 output_type="INPUT")
        return

Stack trace on the error seems to indicate that arcpy.Intersect_Analysis cannot find the feature classes generated by MinimumBoundingGeometry and FeatureToPoint that the script just created:

Traceback (most recent call last):

File "<string>", line 111, in execute

File "c:\program files (x86)\arcgis\desktop10.3\arcpy\arcpy\analysis.py", line 289, in Intersect

raise e

ExecuteError: Failed to execute. Parameters are not valid.

ERROR 000732: Input Features: Dataset C:\GISData\scratch\acir_runs\Hernando_Fuzzy2.gdb\Mines\Mines_MBG #;C:\GISData\scratch\acir_runs\Hernando_Fuzzy2.gdb\Mines\Mines_centroids # does not exist or is not supported

Failed to execute (Intersect).

Commenting out lines 26-30 produces viable output from the MBG and F2P tools.

Anybody run into this one before? Am I missing something obvious - perhaps scoping issues - inherent to .pyc toolboxes/classes, or this is another instance of arcpy $#!^ing the bed?

Re: .pyc tool cannot find earlier output

DanPatterson_Retired — Mon, 11 Apr 2016 17:18:20 GMT

throw in a print statement to check the input and output names and append the catalogpath if you have to

Re: .pyc tool cannot find earlier output

deleted-user-mGKzsOLEnzmy — Mon, 11 Apr 2016 17:23:12 GMT

Tried that, along with some other basic debugging trying to tackle basic issue like this. Still no joy, even with the fully qualified path names to the feature classes. I also tried enclosing the intersect call within its own function outside of def execute and passing the parameters to a seperate function; that did not work, either.

Running Intersect manually on the two outputs afterwards works fine, however; no problems there.

Re: .pyc tool cannot find earlier output

RebeccaStrauch__GISP — Mon, 11 Apr 2016 18:57:20 GMT

I would check you "in_features = [mbg, cents]" seems that is the issue and maybe not quite the correct format that is wants in script.

Intersect—Help | ArcGIS for Desktop

Re: .pyc tool cannot find earlier output

deleted-user-mGKzsOLEnzmy — Sat, 11 Dec 2021 21:53:38 GMT

Finally got it to work by carefully formatting the fully qualified path names.

    def execute(self, parameters, messages):
        """Execute linear orientation analysis."""
        input = parameters[0].valueAsText
       
        baseName = arcpy.Describe(input).baseName
       
        basePath = os.path.split(arcpy.Describe(input).catalogPath)[0]               
        arcpy.env.workspace = basePath
       
        #overwrite doesn't work, tool still fails if output already exists
        arcpy.env.overwriteOutput = True
       
        #output names
        mbg = "{0}_MBG".format(baseName)
        cents = "{0}_centroids".format(baseName)
        intersectOutput = "{0}_MBG_Intersect".format(baseName)
       
        #output
        arcpy.MinimumBoundingGeometry_management(input,
                                                mbg,
                                                "CONVEX_HULL",
                                                "NONE", "#",
                                                "MBG_FIELDS")
        arcpy.FeatureToPoint_management(input,
                                        cents,
                                        "INSIDE")     


        #=======================================================================
        arcpy.Intersect_analysis(in_features = [r'{0}\\{1}'.format(basePath, mbg),r'{0}\\{1}'.format(basePath, cents)],
                                out_feature_class = intersectOutput,
                                join_attributes = "ALL",
                                cluster_tolerance = "-1 Unknown",
                                output_type="POINT")
        #=======================================================================


        return

Nothing I tried using single slashes worked, the intersect tool apparently needed '\\' regardless of whether or not you passed a raw string using 'r' or not. How obscure is that...