谁能帮我弄清楚发生了什么以及如何解决这个错误？
当我尝试导入之前编译的模块时，会出现以下消息：
Python 3.1.4 (default, Mar 8 2012, 09:13:26)
[GCC 4.3.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pypt
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: /usr/local/lib/python3.1/site-packages/pypt.so: undefined symbol: PyUnicodeUCS4_FromString