python:クラス名の取得: __class__.__name__

[GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)] on linux2
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>>> from tx import *
>>> x=deliver()
>>> x.__class__
<class tx.deliver at 0xb7de45cc>
>>> x.__class__.__name__
'deliver'