WorkflowExecutionError

Summary

The WorkflowExecutionError exception is raised when a workflow encounters an execution error.

Discussion

The WorkflowExecutionError exception is raised if the workflow cannot be executed. For example, if the job is not assigned to the current user or the job is closed, it is not possible to execute a job's workflow.

Code sample

The WorkflowExecutionError exception is used below to handle any errors that result from trying to execute the workflow.

import arcpy
import sys
import traceback


# Define the callback response function. In this case it will prompt the user using the console to respond.
def callback(question, responses):

    # Print out the expected responses
    for resp in responses:
        print("[%i] %s" + (resp[1], resp[0]))

    # Prompt the user to respond
    val = int(input("%s - %s: " % (question[1], question[0])))

    # Return their response. Currently only returning the value, but could also return a note (for questions) and the name of the response
    return val, "", ""


# Establish a connection to a Workflow database
conn = arcpy.wmx.Connect(r'c:\test\Workflow.jtc')

# Get a Job for Execution
job = conn.getJob(77601)

try:
    # Execute the current Step in the Job - a LaunchArcmap step without Proceed to Next enabled
    result = job.executeStep(callback=callback)

    # A Launch ArcMap step will not finish automatically it will be complete after the user indicates it is.
    if not result.finished:
        t = input("Please press any key and hit enter when finished step") 

        # Finish the step and Mark as Complete
        result.finishStep(callback=callback) 
        job.markStepAsComplete(callback=callback)

        # Run the next step in the workflow
        result = job.executeStep(callback=callback)

    print("Executing a 2nd step returned %i" % result.returnCode)
    
    # Mark the step as complete
    job.markStepAsComplete(callback=callback) 

except wmx.WorkflowExecutionStepError as e:
    print("Step failed to execute:")
    print("-"*60)
    traceback.print_exc()