Python Add-in missing

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08-06-2014 06:53 AM
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New Contributor

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()

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Esri Esteemed Contributor

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()

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New Contributor

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.

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Occasional Contributor

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.

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New Contributor

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.

falla.png.

Thanks,

Mauricio.

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Esri Esteemed Contributor

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.

Highlighted
Occasional Contributor

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.

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New Contributor

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!

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