[ python-Bugs-995206 ] Deprecation Warning lies when it cannot parse your encoding

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Bugs item #995206, was opened at 2004-07-21 14:48
Message generated for change (Comment added) made by lcreighton
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Category: None
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Laura Creighton (lcreighton)
Assigned to: Nobody/Anonymous (nobody)
Summary: Deprecation Warning lies when it cannot parse your encoding

Initial Comment:
The first line of my python file was:
# -*- coding: 'iso-8859-1' -*-

This is wrong, I need to drop the quotes.  But Python
2.3.4 (#2, Jun 19 2004, 18:15:30) is wrong, also, when it
complains:
sys:1: DeprecationWarning: Non-ASCII character '\xf6'
in file test_stockdict.py on line 14, but no encoding
declared; see http://www.python.org/peps/pep-0263


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>Comment By: Laura Creighton (lcreighton)
Date: 2004-07-21 17:37

Message:
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We'll see if this gets me what I want, a comment to
Marc-Andrés comment.

That the parser, which cannot parse my encoding comment
ignores it and tries to continue work, may or may not be
admirable behaviour on the part of the parser.  I'd have
preferred a LookupError or a ValueError, or maybe a 
RuntimeWarning complaining that it couldn't make sense of my
encoding.

But when I get a Deprecation Warning, saying 'no encoding
declared' when there is one, and it's unusable, then that is
the wrong Warning to raise.

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Comment By: M.-A. Lemburg (lemburg)
Date: 2004-07-21 15:20

Message:
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I don't see why this should be wrong: if the parser cannot
parse the encoding comment, it simply ignores it and then
continues to work as if no encoding comment were given.


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