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I use a little algorithm to transform values from an openstreetmap-file into a table (.dbf).

I use the function: GetFieldAsString("string") from ogr.py and everything is fine, but when the "string" contains a char like "_" or ":" the error:

ERROR1: Invalid field name: 'string_string'

appear.

(The function I use comes from there)

closed as off-topic by PolyGeo Jan 8 '18 at 10:18

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The field name is too long. DBF is a really old format and has a maximum field name length of 10 characters and the only characters allowed are [A-Z][0-9] and underscores "_"

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