topic Running Cell Stat from copied Python command produces error in ArcGIS Pro Questions

Running Cell Stat from copied Python command produces error

GabrielMarcus1 — Mon, 07 Jan 2019 19:59:27 GMT

When I run Cell Statistics from the UI, then copy the python command from History and paste it into the Python window, it produces an error:

TypeError: CellStatistics() takes from 1 to 3 positional arguments but 4 were given.

The only modification I made to the script was changing the name of the output.

Here's the code:

arcpy.ia.CellStatistics(r"'WindSpeed\WindSpd_10_HTGL1/9/2019 6:00:00 PM';'WindSpeed\WindSpd_10_HTGL1/9/2019 12:00:00 PM';'WindSpeed\WindSpd_10_HTGL1/9/2019 6:00:00 AM';WindSpeed\WindSpd_10_HTGL1/9/2019;'WindSpeed\WindSpd_10_HTGL1/8/2019 6:00:00 PM';'WindSpeed\WindSpd_10_HTGL1/8/2019 12:00:00 PM';'WindSpeed\WindSpd_10_HTGL1/8/2019 6:00:00 AM';WindSpeed\WindSpd_10_HTGL1/8/2019;'WindSpeed\WindSpd_10_HTGL1/7/2019 6:00:00 PM';'WindSpeed\WindSpd_10_HTGL1/7/2019 12:00:00 PM';'WindSpeed\WindSpd_10_HTGL1/7/2019 6:00:00 AM';WindSpeed\WindSpd_10_HTGL1/7/2019;'WindSpeed\WindSpd_10_HTGL1/6/2019 6:00:00 PM';'WindSpeed\WindSpd_10_HTGL1/6/2019 12:00:00 PM';'WindSpeed\WindSpd_10_HTGL1/6/2019 6:00:00 AM';WindSpeed\WindSpd_10_HTGL1/10/2019", r"C:\Users\gmarcus\Documents\ArcGIS\Projects\MyProject4\MyProject4.gdb\WindSpdMaxde", "MAXIMUM", "DATA")

Why would the python that ArcGIS Pro produces cause an error? Is this yet another example of a line of python produced by ArcGIS Pro that is known to not work?

I'm aware that when copying the Python from Raster Calculator also doesn't work. It seems lame to allow a user to copy a Python snippet when it won't work. Looking at the example of Cell Statistics in the documentation, it seems like this is another example of this approach. WHY ARE YOU DOING THIS ESRI?!

Thanks,

Gabe

Re: Running Cell Stat from copied Python command produces error

DanPatterson_Retired — Mon, 07 Jan 2019 20:24:59 GMT

you will have to parse the output string since you have noted, up to 3 are required, but it appears that they have whipped in the save portion into the output string

outCellStats = CellStatistics(["degs", "negs", "cost"], "STD", "DATA")

outCellStats.save("C:/sapyexamples/output/outcellstats.img")

you stuff

result = arcpy.ia.CellStatistics(r'..snip...', "MAXIMUM", "DATA") # your input list

result.save( r"C:\… snip... \MyProject4.gdb\WindSpdMaxde") # your output folder

Re: Running Cell Stat from copied Python command produces error

GabrielMarcus1 — Mon, 07 Jan 2019 22:13:16 GMT

I have it working now. I'm annoyed that copying the python command won't work though.

Re: Running Cell Stat from copied Python command produces error

DanPatterson_Retired — Mon, 07 Jan 2019 22:23:22 GMT

Gabriel,

It is a bug, and I will report it to the ArcGIS Pro 2.3 beta 2 forum

Worked in the interface as designed and described.

Copied the path into the CellStatistics line which it shouldn't

arcpy.ia.CellStatistics("r012;2", r"C:\Git_Dan\arraytools\array_tools_testing\array_tools.gdb\CellSta_r0121", "MAXIMUM", "DATA")

DONE... I will report here any information, but the help is misleading and/or it should include an optional path parameter should the user wish to save the results.

Re: Running Cell Stat from copied Python command produces error

ElizabethGraham — Tue, 08 Jan 2019 00:03:41 GMT

Thank you for bringing this issue to our attention. I have submitted this issue to our development team and will work towards a fix for next release.

Re: Running Cell Stat from copied Python command produces error

GabrielMarcus1 — Tue, 08 Jan 2019 00:28:18 GMT

2.3 beta 2? Does it matter that I'm running 2.2.4?

Re: Running Cell Stat from copied Python command produces error

DanPatterson_Retired — Tue, 08 Jan 2019 00:33:29 GMT

Gabriel... I am running 2.3 beta 2 and it failed… if it failed in 2.2.4, then it just hasn't been detected as an error, or no one reported it before.

Your workaround is to remember that the 'save' portion of the process has somehow been included in the one-line but needs to be separated out as I showed.

Re: Running Cell Stat from copied Python command produces error

GabrielMarcus1 — Tue, 08 Jan 2019 21:16:21 GMT

Thanks for your help everyone!

One other thing: why are some commands such as "merge" and "project" output from the "Copy as python command" as arcpy.management.name versus "name_management" the way that they appear in the docs?

Re: Running Cell Stat from copied Python command produces error

GabrielMarcus1 — Wed, 16 Jan 2019 03:31:54 GMT

Dan,

Is your raster.save working appropriately?

I've annotated my script with status messages using print() statements.

I have a loop that saves 3 files to a GDB. The first one executes, then stops.

There's no error. It just stops executing. The raster file is named the variable name, but the name I chose for the raster is stored in the GDB.

There are no conditional statements to branch off or evaluate a condition.

Re: Running Cell Stat from copied Python command produces error

DanPatterson_Retired — Wed, 16 Jan 2019 04:21:53 GMT

I save my rasters to *.tif files for a variety of reason, so not in a gdb.

I would therefore, specify a complete path to a folder.

I don't know what happens when things go wrong and rasters are directed to a gdb.

On the upside, I can use my tif files in other applications... if I need a raster equivalent in a gdb, I can 'copy raster' it in without the file extension.

Just make sure you don't send rasters to a folder without a file extension, unless you want esri grids (which aren't the same as rasters in a gdb if memory serves)

Re: Running Cell Stat from copied Python command produces error

NobbirAhmed — Wed, 16 Jan 2019 18:17:07 GMT

Both arcpy.management.Copy(... parameters..) and arcpy.Copy_management(... parameters ...) are equally valid and interchangeable for all tools. More generic is:

arcpy.toolboxalias.toolname(parameters) or

arcpy.toolname_toolboxalias(parameters)

Re: Running Cell Stat from copied Python command produces error

DrewFlater — Wed, 16 Jan 2019 18:23:58 GMT

As Nobbir said, both formats are supported Using tools in Python—Geoprocessing and Python | ArcGIS Desktop

We include both syntax options to support different preferences for running tools - some people prefer to think of every toolbox as a Python module, which is a more Pythonic way of executing functions - arcpy.toolbox.tool(). However we wanted to support arcpy.tool_toolbox() as well since this is the legacy syntax from the old arcgisscripting, and some people prefer to have this flat list where you do not need to know the toolbox a tool is in to access it.

Re: Running Cell Stat from copied Python command produces error

MatthewNoteboom1 — Tue, 14 May 2019 13:48:22 GMT

There seem to be a few of these. It's been an issue for a while - with ArcMap 10.3 the function to convert a model to a python script was only useful for populating the tool names, otherwise it needed to be rewritten.

Now, similar to Gabriel's issue, Intersect has a similar problem. "Copy Python Command" returns this:

arcpy.analysis.Intersect(r"BETA_AAFC_BUP_LU2010_Poly #;V_PopCtrs_2016_Buf5k_seldis_ #", r"BETA_AAFC_BUP_LU2010_Buff", "ALL", None, "INPUT")

When what it needs is this:

arcpy.analysis.Intersect(["BETA_AAFC_BUP_LU2010_Poly", "V_PopCtrs_2016_Buf5k_seldis_"], r"BETA_AAFC_BUP_LU2010_Buff", "ALL", None, "INPUT")

For the record, this is ArcGIS Pro V2.1.1.