Python在写入文件时中文报错IOError:[Errno22]invalidmode(‘w‘)orfilename

Python版本为2.7.0&＃xff0c;IDE为PyCharm

f &＃61; open(filename, &＃39;w&＃39;)
f.write(html)

filename中包含中文&＃xff0c;html为一个网页数据&＃xff0c;结果报了如下的错

  File "D:/PythonWorkSpace/test.py", line 42, in tiebaSpider(fullUrl,beginPage,endPage)File "D:/PythonWorkSpace/test.py", line 31, in tiebaSpiderwriteFile(html,filename)File "D:/PythonWorkSpace/test.py", line 20, in writeFilef &＃61; open(filename, &＃39;w&＃39;)
IOError: [Errno 22] invalid mode (&＃39;w&＃39;) or filename: &＃39;\xe7\xac\xac1\xe9\xa1\xb5.html&＃39;

将代码修改为&＃xff1a;

    f &＃61; open(filename.decode(&＃39;utf-8&＃39;), &＃39;w&＃39;)f.write(html)

成功运行&＃xff0c;因为是Python中的字符串的大概分为为str和Unicode两种形式&＃xff0c;其中str常用的编码类型为utf-8,gb2312,gbk等等&＃xff0c;Python使用Unicode作为编码的基础类型&＃xff0c;open(filename, ‘w’)这个方法中&＃xff0c;filename这个参数必须是Unicode编码的参数。