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6c C s t | ƒ i | i ƒ S( sŠ Replace characters with their character entity references.
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s ["&<>]|[^\x00-\x7f]c C s% | i i | i t | ƒ ƒ i d ƒ S( s3 Replace characters with their character references.
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The return value is guaranteed to be ASCII.
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c C sS t | t ƒ o9 | i | i | i !} t i | ƒ } t | ƒ | i f S| ‚ d S( s4 An encoding error handler.
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>>> u'The cost was \u20ac12.'.encode('latin1', 'htmlentityreplace')
'The cost was €12.'
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