从py2exe'd程序连接到Oracle时出错：无法获取Oracle环境句柄

My python program (Python 2.6) works fine when I run it using the Python interpreter, it connects to the Oracle database (10g XE) without error. However, when I compile it using py2exe, the executable version fails with "Unable to acquire Oracle environment handle" at the call to cx_Oracle.connect().My python program (Python 2.6) works fine when