Arcmap script will not print messages in arcmap console

Question

I have a Python script for Arcmap that I wrote. I'm trying to create a tool that reprojects all the feature classes within the workspace to a specified feature class.

The problem that I'm having is that I cannot get Arcmap to print the "completed" messages. The messages that I want to have appear will print when I hard-code the variables and run it as a script, but they will not print in Arcmap. You can see in the code below that I have specific printed messages that I want printed, but they just won't appear.

Code:

#Import modules
import arcpy, os

#Set workspace directory
from arcpy import env

#Define workspace
inWorkspace = arcpy.GetParameterAsText(0)
env.workspace = inWorkspace
env.overwriteOutput = True

try:
    #Define local feature class to reproject to:
    targetFeature = arcpy.GetParameterAsText(1)

    #Describe the input feature class
    inFc = arcpy.Describe(targetFeature)
    sRef = inFc.spatialReference

    #Describe input feature class
    fcList = arcpy.ListFeatureClasses()

    #Loop to re-define the feature classes and print the messages:
    for fc in fcList:
        desc = arcpy.Describe(fc)
        if desc.spatialReference.name != sRef.name:
            print "Projection of " + str(fc) + " is " + desc.spatialReference.name + ", so re-defining projection now:\n"
            newFc = arcpy.Project_management(fc, "projected_" + fc, sRef)
            newFeat = arcpy.Describe(newFc)
            count = arcpy.GetMessageCount()
            print "The reprojection of " + str(newFeat.baseName) + " " + arcpy.GetMessage(count-1) + "\n"

    #Find out which feature classes have been reprojected
    outFc = arcpy.ListFeatureClasses("projected_*")

    #Print a custom messagae describing which feature classes were reprojected
    for fc in outFc:
        desc = arcpy.Describe(fc)
        name = desc.name
        name = name[:name.find(".")]
    name = name.split("_")
    name = name[1] + "_" + name[0]
    print "The new file that has been reprojected is named " + name + "\n"

except arcpy.ExecuteError:
    pass

severity = arcpy.GetMaxSeverity()

if severity == 2:
    print "Error occurred:\n{0}".format(arcpy.GetMessage(2))
elif severity == 1:
    print "Warning raised:\n{1}".format(arcpy.GetMessage(1))
else:
    print "Script complete"

When I upload a script into an Arcmap toolbox, the following lines (From the above code) will NOT print:

print "Projection of " + str(fc) + " is " + desc.spatialReference.name + ", so re-defining projection now:\n"

print "The reprojection of " + str(newFeat.baseName) + " " + arcpy.GetMessage(count-1) + "\n"

print "The new file that has been reprojected is named " + name + "\n"

How can I fix this?

I doubt that IDLE has anything to do with this, but to make sure, run your script directly with python, without involving IDLE. — Terry Jan Reedy, Oct 31 '19 at 04:07

score 1 · Accepted Answer · answered Nov 03 '19 at 12:58

print only prints the messages while your script is running in Python interpreter. In order to print logs while the script is running in ArcGIS Toolbox, you need to use arcpy.AddMessage()

arcpy.AddMessage("Projection of {0} is {1}, so re-defining projection now: ".format(str(fc), desc.spatialReference.name)

Arcmap script will not print messages in arcmap console

1 Answers1