我正在提供大型静态文件~70 MB，我可以在烧瓶中单独工作时下载文件，但是在使用Tornado和烧瓶时我收到以下错误。
GP以下是我用来提供文件的代码
Exception ignored in: <bound method Future.__del__ of <tornado.concurrent.Future object at 0x32c61acc>>
Traceback (most recent call last):
File "/home/user/virtual/lib/python3.4/site-packages/tornado/concurrent.py", line 333, in __del__
File "/usr/local/lib/python3.4/traceback.py", line 181, in format_exception
File "/usr/local/lib/python3.4/traceback.py", line 153, in _format_exception_iter
File "/usr/local/lib/python3.4/traceback.py", line 18, in _format_list_iter
File "/usr/local/lib/python3.4/traceback.py", line 65, in _extract_tb_or_stack_iter
File "/usr/local/lib/python3.4/linecache.py", line 15, in getline
File "/usr/local/lib/python3.4/linecache.py", line 41, in getlines
File "/usr/local/lib/python3.4/linecache.py", line 126, in updatecache
File "/usr/local/lib/python3.4/tokenize.py", line 437, in open
AttributeError: 'module' object has no attribute 'open'