How to display a progress bar in an arcpy python toolbox?

Question

I'm programming a python toolbox (*.pyt) and want to display a progressbar in arcgis 10.3. I'm using the same piece of code as this one, but I can't see the same dialog box as above. I can only see the messages updating in the geoprocessing "results" window. I also tried to add my Pyt to the toolbox window, but this didn't solve this issue.

Is this progressor class only working for python script, and not for python toolbox ?

• KHibma: What value is this setting in your PYT : canRunInBackground ?
• Midavalo: Welcome to GIS SE! Thank you for taking the new user tour. I have added a brief answer explaining how to display that progress dialog, however it's hard to offer any more help without seeing some test code. Please edit your question to include a test PYT as text (not an image) of what you've tried.

Answer 1

To see the progress dialog as seen in the linked Q&A you need to have self.canRunInBackground = False set in your PYT code. This will force your tool to run in the foreground with that dialog showing.

See Defining a tool in a Python toolbox

class CalculateSinuosity(object):
 def __init__(self):
 self.label = "Calculate Sinuosity"
 self.description = "Sinuosity measures the amount that a river meanders within its valley, " + \
 "calculated by dividing total stream length by valley length."
 self.canRunInBackground = False