[issue14990] detect_encoding should fail with SyntaxError on invalid encoding

[STINNER Victor]

STINNER Victor <victor.stinner at gmail.com> added the comment:

The patch is correct according to the PEP 263:

    If a source file uses both the UTF-8 BOM mark signature and a
    magic encoding comment, the only allowed encoding for the comment
    is 'utf-8'.  Any other encoding will cause an error.

The fix should also be applied to 3.2.

(Note: Python 3.1 doesn't accept bugfixes anymore.)

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components: +Unicode
nosy: +ezio.melotti, haypo
versions:  -Python 3.1
Added file: http://bugs.python.org/file25825/detect_encoding.patch

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