topic Re: arcpy - new line in geoprocessing dialog window in Python Questions

arcpy - new line in geoprocessing dialog window

MarkWisniewski — Tue, 14 Apr 2015 07:52:30 GMT

Hi,

I am currently using;

arcpy.AddMessage(arcpy.GetMessages())

and

arcpy.AddMessage(fc)

to tell me the features that are being processed by the geoprocessing tool in my script. Is there a way to seperate these in the geoprocessing dialog window by a line spacing because it looks cluttered?

Re: arcpy - new line in geoprocessing dialog window

DanPatterson_Retired — Tue, 14 Apr 2015 07:56:32 GMT

arcpy.AddMessage(arcpy.GetMessages() + "\n")

and/ or

arcpy.AddMessage("\n" + fc + "\n")

where "\n" is the newline in python and you have to concatenate them in AddM***

for arcpy.GetMessages you might have to cycle through the list and add a newline to each entry

msgs = arcpy.GetMessages()

for msg in msgs:

arcpy.AddMessage(msg)

Re: arcpy - new line in geoprocessing dialog window

MarkWisniewski — Tue, 14 Apr 2015 08:07:51 GMT

Dan,

It appears \n isn't supported, I tried it in both statements above.

Re: arcpy - new line in geoprocessing dialog window

DanPatterson_Retired — Tue, 14 Apr 2015 08:11:51 GMT

you enclosed it in double quotes and used the + to concatenate them ? as in the following

arcpy.AddMessage("Hello" + "\n")

Re: arcpy - new line in geoprocessing dialog window

MarkWisniewski — Tue, 14 Apr 2015 08:20:24 GMT

Sure did;

Error 000576: Script associated with this tool does not exist.

Re: arcpy - new line in geoprocessing dialog window

DanPatterson_Retired — Tue, 14 Apr 2015 08:31:05 GMT

AddMessage only works in scripts associated with tools in ArcToolbox. That error message means that the script you are using isn't associated with a tool. If you are running a script outside of a tool in ArcToolbox, then you have to use the print statement. If I want to have messages appear both in Arctoolbox's output dialog and when I run a script stand alone, then I do the following

msg = "my message here"

msg2 = "another message"

print msg, "\n", msg2 ( or print('{}\n {}'.format(msg,msg2)) using the newer print statement"

arcpy.AddMessage(msg + "\n" + msg2)

so you will have to clarify where you are running this and include your script portion

Re: arcpy - new line in geoprocessing dialog window

MarkWisniewski — Tue, 14 Apr 2015 08:48:12 GMT

Oops Dan,

My apologies, user error, I renamed a folder that was used for accessing the script in the toolbox. My error. Had to set filepath in script again.

arcpy.AddMessage ("\n" + fc) is kind of working but gets;

abc.shp

xyz.shp

123.shp

How can I make the list please?;

abc.shp

xyz.shp

123.shp

Re: arcpy - new line in geoprocessing dialog window

DanPatterson_Retired — Tue, 14 Apr 2015 08:59:32 GMT

just remove the... "\n" + ... if you are using AddMessage in a loop

Re: arcpy - new line in geoprocessing dialog window

MarkWisniewski — Tue, 14 Apr 2015 09:25:01 GMT

That works removing the "\n" in my loop, but I am after this affect;

Running script Clip...

abc.shp

xyz.shp

123.shp

The line space after "Running script Clip..."in the dialog box and before the shapefile name. arcpy.AddMessage ("\n" + fc) inserts this space, but also a space between shapefile names. How can I remove the space between the shapefile names?

Re: arcpy - new line in geoprocessing dialog window

DanPatterson_Retired — Tue, 14 Apr 2015 12:13:01 GMT

somewhere at the very beginning of your script just add a line which is a blank message

arcpy.AddMessage("")

if you didn't add the "running the clip script your self

then in the loop your message remains the same

Re: arcpy - new line in geoprocessing dialog window

MarkWisniewski — Tue, 14 Apr 2015 12:16:50 GMT

The "Running script Clip..."is coming from arcpy.AddMessage(arcpy.GetMessages()) and not added by myself.

Re: arcpy - new line in geoprocessing dialog window

MarkWisniewski — Tue, 14 Apr 2015 12:25:31 GMT

This is a visual of what I am trying to achieve;

Re: arcpy - new line in geoprocessing dialog window

DanPatterson_Retired — Tue, 14 Apr 2015 12:27:33 GMT

Then what happens when you remove that line? and just leave the arcpy.AddMessage lines alone. Experiment until you understand the affect of both lines on the outputs.

Re: arcpy - new line in geoprocessing dialog window

DanPatterson_Retired — Tue, 14 Apr 2015 12:29:01 GMT

as I said

arcpy.AddMessage("")

will produce a blank line

Re: arcpy - new line in geoprocessing dialog window

MarkWisniewski — Tue, 14 Apr 2015 12:36:41 GMT

No change

Re: arcpy - new line in geoprocessing dialog window

DanPatterson_Retired — Tue, 14 Apr 2015 12:38:20 GMT

Did you try...as suggested...getting rid of the

arcpy.AddMessage(arcpy.GetMessages()) line?

All that line does is get all the messages ... if you want to see where the messages should be added...post your code

Re: arcpy - new line in geoprocessing dialog window

MarkWisniewski — Tue, 14 Apr 2015 12:40:52 GMT

Sorry Dan, I can't get arcpy.AddMessage("") to do anything.

I can get arcpy.AddMessage(fc) to print shapefile names, but with no space before first shapefile.

Re: arcpy - new line in geoprocessing dialog window

DanPatterson_Retired — Tue, 14 Apr 2015 12:50:38 GMT

last try and then this is going into my collection...

arcpy.AddMessage("\n")

otherwise post your code

Re: arcpy - new line in geoprocessing dialog window

MarkWisniewski — Tue, 14 Apr 2015 13:02:09 GMT

Its not going into your collection . That worked putting arcpy.AddMessage("\n") at the start of my script. Thanks for your patience Dan.