Eclipse/PyDev - BOM Lexical Error

Ethan Furman ethan at
Mon Oct 11 04:35:27 CEST 2010

Lawrence D'Oliveiro wrote:
> In message <mailman.1466.1286556950.29448.python-list at>, Ethan 
> Furman wrote:
>>Lawrence D'Oliveiro wrote:
>>>But they can only recognize it as a BOM if they assume UTF-8 encoding to
>>>begin with. Otherwise it could be interpreted as some other coding.
>>Not so.  The first three bytes are the flag.
> But this is just a text file. All parts of its contents are text, there is 
> no “flag”.
> If you think otherwise, then tell us what are these three “flag” bytes for a 
> Windows-1252-encoded text file?

MS treats those first three bytes as a flag -- if they equal the BOM, MS 
treats it as UTF-8, if they equal anything else, MS does not treat it as 

If you think otherwise, hop on an MS machine and test it out.


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