[SQLObject] Why does converters.py/stringLikeConverter escape linebreaks and others

Hey folks,

I was wondering why the sqlrepr from converters.py is escaping 
linebreaks and other chars for postgres.

I'm talking about this piece of code:

sqlStringReplace = [
     ("'", "''"),
     ('\\', '\\\\'),
     ('\000', '\\0'),
     ('\b', '\\b'),
     ('\n', '\\n'),
     ('\r', '\\r'),
    ('\t', '\\t'),
]

This causes for e.g. \ to multiply. when I comment out everything but 
the escaping of the single quote everything works as aspected. I don't 
see the reason why this is done in the first place.

Could anyone please explain this to me and why this is done when saving 
but not undone when loaing?

Regards
Thomas

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