Python Add-in missing

[MauricioSilveira]

Hello,

I programmed an initial add in in Python that works just fine. My problem is that when I make a trivial refactoring change to it, it fails to load in ArcGIS desktop.

The docs point to this being a syntax error in the code, but I checked it outside of ArcGIS and it worked just fine. I also couldn't find any information on ArcGIS (error logs, for example) about what the syntax error could be.

What can I do to find the cause of this problem? Can I find anywhere in ArcGIS a detailed error message about why this fails to load?

I post below how I refactored my code in case anyone can give me a hint about what could be wrong.

Before refactoring:

import arcpy
import pythonaddins

class Promedio(object):
     """Implementation for AddinsPyPromedio_addin.Promediobutton (Button)"""
     def __init__(self):
          self.enabled = True
          self.checked = False 

     def onClick(self):
          #Compute average

After refactoring:

import arcpy
import pythonaddins

class Promedio(object):
     """Implementation for AddinsPyAverage_addin.Averagebutton (Button)"""
     def __init__(self):
          self.enabled = True
          self.checked = False

     def computeAverage(self):
          #compute average

     def onClick(self):
          self.computeAverage()

[JakeSkinner]

I believe the issue is do to the fact you have nothing under the 'computeAverage' function.  Try the following:

import arcpy 
import pythonaddins 

class Promedio(object): 
    """Implementation for AddinsPyAverage_addin.Averagebutton (Button)""" 
    def __init__(self): 
          self.enabled = True 
          self.checked = False 

    def computeAverage(self): 
          print 'test'

    def onClick(self): 
          self.computeAverage()

[MauricioSilveira]

Thanks Jake for your reply.

I apologize for the confusion. The code I posted was abridged for the sake of clarity. In place of the "#compute average" comment, I actually do the computation of the average. I include this code below.

Original code: (Working)

import arcpy
import pythonaddins

class Promedio(object):
    """Implementation for AddinsPyPromedio_addin.Promediobutton (Button)"""
    def __init__(self):
        self.enabled = True
        self.checked = False

    def onClick(self):
        try:
            mxd = arcpy.mapping.MapDocument("CURRENT")
            layers = arcpy.mapping.ListLayers(mxd)
            print "Done, Done, Done"
            capaConseguida = False
            layerIntersection = layers[0]
            for lyr in layers:
                print lyr.name
                if "OutFeatures" in lyr.name:
                    print "IF"
                    capaConseguida=True 
                    layerIntersection=lyr
            if capaConseguida==True:
                print "We got it"

                pathLayer=""
                try:
                    pathLayer = layerIntersection.workspacePath+"\\"+layerIntersection.name
                    cur = arcpy.AddField_management(pathLayer,"prommax",'FLOAT')
                except:
                    print "Something went wrong... An error ocurred..."

                print pathLayer
                fields = arcpy.ListFields(pathLayer, "", "")
                names=[]


                for fld in fields:
                    if 'min' in fld.name:
                        names.append(fld.name)
                    elif fld.name=="prommax":
                        names.append(fld.name)


                j=0
                with arcpy.da.UpdateCursor(pathLayer,names) as cursor:
                    for row in cursor:
                        suma=0
                        for z in range(0,len(names)-1):    
                            suma = suma + row

                        resultado=suma
                        print resultado
                        row[len(names)-1]=float(resultado)
                        cursor.updateRow(row)

            arcpy.RefreshActiveView()
            arcpy.RefreshTOC()
        except Exception, err:
            print arcpy.GetMessages(2)
            print Exception, err

Below I include a trivial variation of the code above, factoring out a single line of code (line 18). This is a silly first step towards the very simple refactoring I described in my first post. This doesn't load in ArcMAP. Anyone knows why?

import arcpy
import pythonaddins


class Promedio(object):
    """Implementation for AddinsPyPromedio_addin.Promediobutton (Button)"""
    def __init__(self):
        self.enabled = True
        self.checked = False


    def calculateAverage(self):
        mxd = arcpy.mapping.MapDocument("CURRENT")
        return mxd

    def onClick(self):
        try:
            mxd = self.calculateAverage()
            layers = arcpy.mapping.ListLayers(mxd)
            print "Done, Done, Done"
            capaConseguida = False
            layerIntersection = layers[0]
            for lyr in layers:
                print lyr.name
                if "OutFeatures" in lyr.name:
                    print "IF"
                    capaConseguida=True 
                    layerIntersection=lyr
            if capaConseguida==True:
                print "We got it"

                pathLayer=""
                try:
                    pathLayer = layerIntersection.workspacePath+"\\"+layerIntersection.name
                    cur = arcpy.AddField_management(pathLayer,"prommax",'FLOAT')
                except:
                    print "Something went wrong... An error ocurred..."

                print pathLayer
                fields = arcpy.ListFields(pathLayer, "", "")
                names=[]


                for fld in fields:
                    if 'min' in fld.name:
                        names.append(fld.name)
                    elif fld.name=="prommax":
                        names.append(fld.name)


                j=0
                with arcpy.da.UpdateCursor(pathLayer,names) as cursor:
                    for row in cursor:
                        suma=0
                        for z in range(0,len(names)-1):    
                            suma = suma + row

                        resultado=suma
                        print resultado
                        row[len(names)-1]=float(resultado)
                        cursor.updateRow(row)

            arcpy.RefreshActiveView()
            arcpy.RefreshTOC()
        except Exception, err:
            print arcpy.GetMessages(2)
            print Exception, err

Thanks.

[ToddUlery]

You have setup to capture any error. That is good. So what are you seeing. Is the Add-in Installed, but just broken, showing no buttons or tools?\

Just to make sure, save a document with the Python window open. Then reinstall the addin - open the MXD and look at what the error says in the python window. Just a thought, not a solution to the problem.

[MauricioSilveira]

Thanks Todd for the answer.

As you said, I can install the Add-in perfectly but what I see is a borken toolbar icon.

I tried what you said but nothing happened, still couldnt see any errors

The image below is a screenshot of what I see.

.

Thanks,

Mauricio.

[JakeSkinner]

1.  Delete the Python add-in in ArcMap by going to Customize > Add-In Manager.  Select the add-in > Delete this Add-In

2.  Close ArcMap

3.  Run the makeaddin.py script

4.  Install the python add-in again

Your python syntax appears to be correct.  I was able to create an add-in, copy/paste your code, and the add-in worked successfully.

[ToddUlery]

can you also copy in the config.xml here.

When you see the the actual tool/button/* it can be a combination of things, but more than likely an issue with the config build not matching up with the python. I would just like to look over them both and make connections.

[MauricioSilveira]

Thanks Jake, I tried that too, but nothing changed.

Of course Todd.

Here it is.

<ESRI.Configuration xmlns="http://schemas.esri.com/Desktop/AddIns" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><Name>Promedio</Name><AddInID>{06aee945-65c8-4cca-acd4-8fda0343d5d8}</AddInID><Description>Promedio</Description><Version>0.1</Version><Image /><Author>Promedio</Author><Company>Promedio</Company><Date>08/05/2014</Date><Targets><Target name="Desktop" version="10.2" /></Targets><AddIn language="PYTHON" library="AddinsPyPromedio_addin.py" namespace="AddinsPyPromedio_addin"><ArcMap>
    <Commands>
        <Button caption="Promedio" category="Promedio" class="Promedio" id="AddinsPyPromedio_addin.Promediobutton" image="" message="Promedio" tip="Promedio"><Help heading="Promedio">Promedio</Help></Button>
    </Commands>
    <Extensions>
    </Extensions>
    <Toolbars>
        <Toolbar caption="Promedio" category="Promedio" id="AddinsPyPromedio_addin.Promediotoolbar" showInitially="true"><Items><Button refID="AddinsPyPromedio_addin.Promediobutton" /></Items></Toolbar>
    </Toolbars>
    <Menus>
        </Menus>
    </ArcMap></AddIn></ESRI.Configuration>

Thanks!