python change the encoding format file

1 def change_file_code(coding,files_name):
2     try:
3         cache_data = linecache.getlines(files_name)
4         with open(files_name, 'wb') as out_file:
5             for line in range(len(cache_data)):
6                 out_file.write(cache_data[line].encode(coding))
7     except Exception as e:
8         print(str(e))

The relevant document to the windows of CRLF and LF issue unix using rb + can cause problems there is a data error wrap modified files, use the wb is not such a case. Specific reasons to be verified.

Note: not recommended linecache here. Use linecache shall indicate in the header file encoding format: coding = utf-8