Double byte character problem

[ishida-crde]

Dear Steve,

Hello, we are using FormGen for various usages in our university.
We really like this add on program.
By the way, we have some trouble with the result of “Multi-Select field”.
For example, when we download the csv file using save adapter, the characters in the csv file were corrupt.
This phenomenon occurred for “Multi-Select field” only.
The characters in other fields, like a selection field were not corrupt, even thong we use Japanese(=double byte character).

Following is the example what we input into “Multi-selection” field and how was the result.

Input:“てすと１”,”てすと２”,”てすと３”
Output in the csv result file: ['\xe3\x81\xa6\xe3\x81\x99\xe3\x81\xa8\xef\xbc\x91', '\xe3\x81\xa6\xe3\x81\x99\xe3\x81\xa8\xef\xbc\x92', '\xe3\x81\xa6\xe3\x81\x99\xe3\x81\xa8\xef\xbc\x93']

It seems that for Japanese only “Multi-selection” field contains garbling error.
Could you give us your advice to fix this error?
At first, we asked Manabu who is the board member in Japan and then Manabu introduced us this Site.

Thank you in advance for your kindest help.

・environment

Plone 4.1.4 (4113)
CMF 2.2.5
Zope 2.13.12
Python 2.6.7 (r267:88850, Sep 10 2015, 12:50:26) [GCC 4.4.7 20120313 (Red Hat 4.4.7-16)]
PIL unknown
FormGen 1.7.0