Thanks for the suggestion.
But I guess under Python this doesn't work. I tried putting the code in
different ways. But still not worked.
codeblock = "def codefun(code): \\
if code == 0: \\
return \"B\" \\
else: return \"\" "
----- Original Message -----
From: "Chris Rebert" <c...@rebertia.com>
To: "Lydia" <css...@hotmail.com>
Cc: <python-list@python.org>
Sent: Thursday, April 09, 2009 1:55 PM
Subject: Re: calculate field in ARCGIS
On Thu, Apr 9, 2009 at 12:42 PM, Lydia <css...@hotmail.com> wrote:
Hi Python users,
I ran into a problem with python coding in ARCGIS. Does anybody have the
experience in dealing with this?
I need to calculate NEWFIELD based on OLDFIELD under condition: if
OLDFIELD
== 0 then return string "B" otherwise return "".
codeblock = "def codefun(code): if code == 0: return \"B\" else: return
\"\"
"
gp.CalculateField_management("INFILE", "OLDFIELD", "codefun(!NEWFIELD!",
"PYTHON", codeblock)
I got error:
RuntimeError:
exceptions.SyntaxError: invalid syntax (line 1)
Failed to execute (CalculateField).
Might I recommend you try using the multiline equivalent (assuming
ArcGIS supports C-style escape sequences):
codeblock = "def codefun(code):\n\tif code == 0:\n\t\treturn
\"B\"\n\telse:\n\t\treturn \"\" "
Cheers,
Chris
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http://blog.rebertia.com
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