Error When Using in_memory to Process Polyline Features

07-18-2018 08:29 AM
New Contributor


I'm trying to run a script that will generate a contour map from a raster in a geodatabase, run Simplify Line on the contour map, and then run Smooth Line. At first I ran it in disk, and it worked (albeit slowly), and now I'd like to do it using the in_memory workspace. However, it returns the error message at the bottom. I've tried this in PyScripter and ArcMap with both foreground and background (64-bit) geoprocessing, and the result is the same. What is the problem with my code that is causing this to fail when I use the in_memory workspace?

# -*- coding: utf-8 -*-
# ---------------------------------------------------------------------------
# Created on: 2018-07-17 11:14:47.00000
#   (generated by ArcGIS/ModelBuilder)
# Description:
# ---------------------------------------------------------------------------

# Import arcpy module
import arcpy
from import *
from arcpy.ddd import *

# Local variables:
FilteredDEM = "D:\\ArcGIS\\FloodMapGenerator\\FloodMapGenerator.gdb\\FilteredDEM"
FiveMeterContour = "in_memory\\FiveMeterContour"
FiveMeterSimplify_Pnt = FiveMeterContour
FiveMeterSimplify = "in_memory\\FiveMeterSimplify"
FiveMeterSmooth = "in_memory\\FiveMeterSmooth"

# Process: Contour
arcpy.Contour_3d(FilteredDEM, FiveMeterContour, "5", "0", "1")

# Process: Simplify Line
arcpy.SimplifyLine_cartography(FiveMeterContour, FiveMeterSimplify, "BEND_SIMPLIFY", "5 Meters", collapsed_point_option = "NO_KEEP", error_checking_option = "NO_CHECK")

# Process: Smooth Line
arcpy.SmoothLine_cartography(FiveMeterSimplify, FiveMeterSmooth, "BEZIER_INTERPOLATION", "0 Meters", "FIXED_CLOSED_ENDPOINT", "NO_CHECK")


Runtime error Traceback (most recent call last): File "", line 27, in File "c:\program files (x86)\arcgis\desktop10.4\arcpy\arcpy\", line 1340, in SimplifyLine raise e ExecuteError: ERROR 000207: Cannot create intermediate output GPInMemoryWorkspace:{5568791D-08F7-4A36-BC5F-A640D3D64572}\FiveMeterSimplify_TmpIn Failed to execute (SimplifyLine).

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6 Replies
MVP Legendary Contributor

/blogs/dan_patterson/2016/08/14/script-formatting please to format your code.

Also you have a bunch of lines with … at the end.  Are they really there? or are they remnants from commenting,

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New Contributor

Sorry about that, thanks for the link. Is this better? As for the period, I copied it out of the Python window, and they were part of that. I just removed them.

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MVP Legendary Contributor

There is no indication in the help for either arcmap or ArcGIS pro that it can't be run in-memory... but it will fail if you run out of memory.  I suspect why it was running slowly on disk is because it was swapping in and out to disk.  Perhaps your file is too large to handle in-memory.

In Pro at least, there is the...

Cartographic Partitions (Environment setting)—Geoprocessing | ArcGIS Desktop 

environment setting that can be used for large data sets to help things along.

New Contributor II

you can use virtual memory in system windows to allocated memory processing

Pada tanggal Kam, 19 Jul 2018 pukul 01.48 Dan Patterson <>


GeoNet <>

Re: Error When Using in_memory to Process Polyline Features

reply from Dan Patterson


in Geoprocessing - View the full discussion


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MVP Legendary Contributor

and that is different than in-memory?

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MVP Esteemed Contributor

How big are the data sets you are working with, both inputs and the final output?

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