Arcpy Calculate Field Formatting Syntax

Question

I am trying to field calculate a double field (PID) to a new string field (PIN). Using:

qry = '"139-{}".format(!PID!)'
arcpy.CalculateField_management(out, "PIN", qry, "PYTHON")

Given a PID = 260360160 The output generated in string PIN field is:

PIN = 139-260360160.0

How can I get rid of the .0? I assume this is carry over from the original field being a double.

I am running ArcGIS 10.2 and Python 2.7.3

Jason · Accepted Answer · 2014-02-27 15:24:50Z

You can use the built-in int() function of python to convert what appears to be a float value in the PID field to an integer:

qry = '"139-{}".format(int(!PID!))'

This should return PIN = 139-260360160

You could also do this by specifying zero decimal places in your string formatting function:

qry = '"139-{:.0f}".format(!PID!)'

Eight Bits Equals a Byte has a really useful page on string formatting in python.

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