Encoding error

output.txt

python subtlex-parser.py
的: <type 'unicode'>
[[]]
Traceback (most recent call last):
  File "subtlex-parser.py", line 32, in <module>
    app = subtlexParser() # création de l'appli
  File "subtlex-parser.py", line 17, in __init__
    self.convert()
  File "subtlex-parser.py", line 29, in convert
    outf.write(line)
UnicodeEncodeError: 'ascii' codec can't encode character u'\u7684' in position 0: ordinal not in range(128)

subtlex-parser.py

#!/usr/bin/python
# -*- coding: UTF-8 -*-
__author__ = "Édoaurd Lopez"
__version__ = "v0.1"
__date__ = "2014-02-25"

# import sys, os.path
from cjklib import characterlookup

subtlexIn = "subtlex.csv"
subtlexOut = "subtlex-out.csv"


class SubtlexParser:
    def __init__(self):
        self.cjk = characterlookup.CharacterLookup('T')
        self.convert()

    def convert(self):
        cjk = self.cjk

        with open(subtlexIn, 'r') as inf:
            with open(subtlexOut, 'a') as outf:
                for l in inf:
                    line = l.strip().decode("utf-8")
                    print u'{0}: {1}'.format(line, type(line))
                    trad = cjk.getCharacterVariants(line, 'C')
                    print u'[{0}]'.format(trad)
                    outf.write(line)

if __name__ == "__main__":
    app = SubtlexParser()  # création de l'appli

subtlex.csv

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