python 类中装饰器

a = Question()
a.all_answer() 正常，结果打印到屏幕
但是我想 a.all_answer(write=True) 执行 if write == True:把结果写入文件

但 a.all_answer(True)报错：

TypeError: internal() takes exactly 1 argument (2 given)

a.all_answer(erite=True)也报错：
TypeError: internal() got multiple values for keyword argument 'write'

把装饰函数放到类中也一样。


代码高亮： https://git.oschina.net/hgzhg/test/blob/master/decorator.py

def write_answer(pre=''):
def wrapper(F):
def internal(write):
if write == True:
result = F(write)
with open('/path/a.txt', 'w') as f:
f.write(result)
else:
print pre
F(write)
return internal
return wrapper


class Question(object):
@write_answer('logging...')
def all_answer(self, write=False):
#下面代码部分直接忽略吧

answer_number = self.answer_number()
reg_img = r'http://pic3.zhimg.com/\w+\.jpg'
if answer_number == 0:
print "This question is no answers"
else:
re_br = re.compile(r'<br/?>')
re_allmark = re.compile(r'<[^>]+>',re.S)
all_answer_list = self.soup.find_all( 'div', 'zm-item-answer ')
for each in all_answer_list:
print each.h3.get_text()
content = str(each.find('div', ' zm-editable-content clearfix'))
br2n = re.sub(re_br, '\n', content)
for s in br2n.split('\n'):
print re.sub(re_allmark, '', s)