2014/1/16 Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info>: > def guess_encoding_from_bom(filename, default): > with open(filename, 'rb') as f: > sig = f.read(4) > if sig.startswith((b'\xFE\xFF', b'\xFF\xFE')): > return 'utf_16' > elif sig.startswith((b'\x00\x00\xFE\xFF', b'\xFF\xFE\x00\x00')): > return 'utf_32' > else: > return default
You might want to add the utf8 bom too: '\xEF\xBB\xBF'. > (4) Don't return anything, but raise an exception. (But > which exception?) I like this option the most because it is the most "fail fast". If you return 'undefined' the error might happen hours later or not at all in some cases. -- mvh/best regards Björn Lindqvist -- https://mail.python.org/mailman/listinfo/python-list
