topic Re: Python Calculate Field Management String Variable Formatting in Python Questions

Python Calculate Field Management String Variable Formatting

GeoffOlson — Wed, 24 Sep 2014 15:02:04 GMT

I'm trying to calculate a field using the Python window, but I can't seem to figure out how to format the function properly. What's the correct syntax for using a string variable as the expression?

arcpy.CalculateField_management(mapLyr2, "Jurisdicti", "'{0}'.format(tName)", "PYTHON")

I couldn't find an example that answered this question for me. Thanks in advance.

Re: Python Calculate Field Management String Variable Formatting

GeoffOlson — Wed, 24 Sep 2014 15:23:57 GMT

I found a work around, but it doesn't solve the question of formatting. If I change the variable to have double quotes it accepts it. I have to format the variable with the quotation marks wrapped in triple apostrophes, like this:

cName = '''"{0}"'''.format(tName)

Re: Python Calculate Field Management String Variable Formatting

RiyasDeen — Wed, 24 Sep 2014 15:46:12 GMT

Hi Jeoff,

Try

arcpy.CalculateField_management(mapLyr2, "Jurisdicti", "\"{0}\"".format(tName), "PYTHON")