Using Where_clause with UpdateCursor and SearchCursor

[GraziaZulian]

Could you give me an example for using a Where_clause with UpdateCursor?I need to iterate for all features with the same code in a multipart FeatureClass.

Here is an example that  doesn???t work to me:
codici=[]
cur = arcpy.SearchCursor(data)
for feature in cur:
    cod = feature.HSMU
    codici.append(cod)
for i in range(len(codici)):
    cod = codici
    where_clause = "[HSMU] = "+codici

    upcur = arcpy.UpdateCursor(multidata,where_clause,'','','')
    for feature in upcur:
        n = arcpy.GetCount_management(multidata)


thanks

[MathewCoyle]

It seems this is incomplete code?  No imports not sure if something else that handles this is missing as well. Also the no indenting makes this block a little hard to read with all the for loops, for me anyways. And what specific error are you getting?

What I think you want is a getValue in there, something like...

cur = arcpy.SearchCursor(data)
feature = cur.next()
for feature in cur:
     cod= feature.getValue("HSMU")
     feature = cur.next()