topic Arcpy Runtime Error The Product License has not been initialized in Python Questions

Arcpy Runtime Error The Product License has not been initialized

ShirleyLi — Sun, 28 Feb 2021 16:51:49 GMT

I'm using ArcPy with multiprocessing to run area solar radiation tool. I keep getting this "Runtime Error The Product License has not been initialized". The script is still running and I can get results. But I wonder if this slows down the process and how I can avoid this error. Here is how I set up the multiprocessing part

# create a process pool
pool = Pool(processes=cpu_count())
pool.starmap(calcSolar,input_path)
pool.close()
pool.join()

I tried to change the number of processes and sometimes I didn't get this error. I'm very new to multiprocessing. Any help is appreciated!

Re: Arcpy Runtime Error The Product License has not been initialized

DanPatterson — Sun, 28 Feb 2021 17:20:50 GMT

see the code examples

Area Solar Radiation (Spatial Analyst)—ArcGIS Pro | Documentation

have you instantiated the spatial analyst extension by importing SA

from arcpy.sa import *

Re: Arcpy Runtime Error The Product License has not been initialized

AngusHooper1 — Mon, 01 Mar 2021 00:02:31 GMT

Are you using a single use license, pulling from a concurrent use license manager or via ArcGIS Online?

Re: Arcpy Runtime Error The Product License has not been initialized

ShirleyLi — Tue, 02 Mar 2021 01:42:31 GMT

Yes. I imported arcpy.sa. I can get results though I got this error so I guess this configuration is okay but not optimal

Re: Arcpy Runtime Error The Product License has not been initialized

ShirleyLi — Tue, 02 Mar 2021 01:43:44 GMT

I'm using the python environment from Pro and it uses a concurrent use license. Do I need a single use license?

Re: Arcpy Runtime Error The Product License has not been initialized

AngusHooper1 — Tue, 02 Mar 2021 02:49:08 GMT

Double check the LM when you run this script. You may be borrowing a license per multiprocess thread and hitting a cap.

Re: Arcpy Runtime Error The Product License has not been initialized

DuncanHornby — Wed, 03 Mar 2021 19:57:00 GMT

I would check out and check in the spatial analyst extension in the worker function you are calling through multiprocessing.

Re: Arcpy Runtime Error The Product License has not been initialized

AlfonsoYanezMorillo — Sun, 14 Mar 2021 19:03:49 GMT

I have the exactly the same Error. My script only uses arcpy in one step before the multiprocessing but not in the function used in the multiprocessing which is handled completely with gdal. This error occurs most of the times bu not always and apparently is related when the function modifies a numpy array or when the array is written in the band. I cannot understand what triggers the error because no arcpy method is called during the process.

def calculateStats(*args): # This function doesn't use arcpy f = functools.partial(calculateStats, in_data=in_data, z_data=z_data, out=out) with multiprocessing.Pool(processes=2) as pool: res = pool.map(f, coordinates) Traceback (most recent call last): File "<string>", line 1, in <module> File "\Local\Programs\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\Lib\multiprocessing\spawn.py", line 105, in spawn_main exitcode = _main(fd) ........ from ._arcgisscripting import * RuntimeError: The Product License has not been initialized.

I'm working in a conda env I created with its arcpy installation. However, apparently arcpy points to a different installation.

sys.executable Out[17]: '\\Anaconda3\\envs\\py37\\python.exe' multiprocessing.__file__ Out[13]: '\\Anaconda3\\envs\\py37\\lib\\multiprocessing\\__init__.py' arcpy.__file__ Out[14]: '\\AppData\\Local\\Programs\\ArcGIS\\Pro\\Resources\\ArcPy\\arcpy\\__init__.py'

Thanks

Re: Arcpy Runtime Error The Product License has not been initialized

DanPatterson — Sun, 14 Mar 2021 21:17:14 GMT

arcpy uses your Pro environment unless your clone includes it, it won't be available