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42 lines
1.0 KiB
42 lines
1.0 KiB
## Amazon S3 manager |
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## Author: Michal Ludvig <michal@logix.cz> |
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## http://www.logix.cz/michal |
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## License: GPL Version 2 |
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class BidirMap(object): |
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def __init__(self, **map): |
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self.k2v = {} |
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self.v2k = {} |
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for key in map: |
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self.__setitem__(key, map[key]) |
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def __setitem__(self, key, value): |
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if self.v2k.has_key(value): |
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if self.v2k[value] != key: |
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raise KeyError("Value '"+str(value)+"' already in use with key '"+str(self.v2k[value])+"'") |
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try: |
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del(self.v2k[self.k2v[key]]) |
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except KeyError: |
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pass |
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self.k2v[key] = value |
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self.v2k[value] = key |
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def __getitem__(self, key): |
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return self.k2v[key] |
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def __str__(self): |
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return self.v2k.__str__() |
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def getkey(self, value): |
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return self.v2k[value] |
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def getvalue(self, key): |
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return self.k2v[key] |
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def keys(self): |
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return [key for key in self.k2v] |
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def values(self): |
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return [value for value in self.v2k] |
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# vim:et:ts=4:sts=4:ai
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