Hi I'm looking for a python script to populate an ID field in ACRGIS 10.2 with a sequential number that resets when the value of site field changes. e.g. Site ID SIte A 0001 Site A 0002 SIte A 0003 Site A 0004 SIte A 0005 Site B 0001 SIte B 0002 Site B 0003 Site C 0001 SIte C 0002 ... ..... I've been using Arc for a number of years but have no python skills yet. Thanks Kenny
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