1 | #!/usr/bin/env python |
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2 | |
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3 | class UnicodeContainer: |
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4 | |
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5 | def __init__(self, unicode): |
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6 | self._unicode = unicode |
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7 | |
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8 | def __str__(self): |
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9 | raise TypeError("string coercion on non bytestream") |
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10 | |
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11 | def __unicode__(self): |
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12 | return self._unicode |
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13 | |
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14 | class LazyUnicodeContainer(UnicodeContainer): |
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15 | def __init__(self, function, *args, **kwargs): |
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16 | self._function = function |
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17 | self._args = args |
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18 | self._kwargs = kwargs |
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19 | |
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20 | def __unicode__(self): |
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21 | if not hasattr(self, '_unicode'): |
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22 | self._unicode = self._function(*self._args, **self._kwargs) |
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23 | return self._unicode |
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24 | |
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25 | class LazyUnicodeDispatcher: |
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26 | |
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27 | def __init__(self, function): |
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28 | self._function = function |
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29 | |
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30 | def __call__(self, *args, **kwargs): |
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31 | return LazyUnicodeContainer(self._function, *args, **kwargs) |
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32 | |
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33 | def test_function(message): |
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34 | print "Calling ugettext" |
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35 | return message.decode('utf-8') |
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36 | |
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37 | print "Setting up the LazyUnicodeDispatcher" |
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38 | lazy_unicode_dispatcher = LazyUnicodeDispatcher(test_function) |
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39 | |
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40 | print "Calling the LazyUnicodeDispatcher" |
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41 | lazy_unicode_container = lazy_unicode_dispatcher('\xc2\xbfQu\xc3\xa9 pasa?') |
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42 | |
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43 | print "Converting the LazyUnicodeContainer" |
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44 | unicode_value = unicode(lazy_unicode_container) |
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45 | |
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46 | print "Printing results:" |
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47 | print " %s" % type(unicode_value) |
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48 | print " %s" % unicode_value |
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