下载图片时出错？

[minkoonim]

脚本里有
file=itchatmp.messages.download(msg['MediaId'])，
收到图片时会发生下面的错误。
在 Python2.7 是没问题的，
出问题是在3.5.5。
有人知道解决方法吗

在附上我的 requirements.txt

File "/root/anaconda3/envs/itchatmp/lib/python3.5/site-packages/itchatmp/components/register.py", line 56, in sync_post_fn
reply = reply_fn(copy.deepcopy(msgDict))
File "app.py", line 143, in img_reply
file=itchatmp.messages.download(msg['MediaId'])
File "/root/anaconda3/envs/itchatmp/lib/python3.5/site-packages/itchatmp/controllers/messages.py", line 38, in download
mediaId)
File "/root/anaconda3/envs/itchatmp/lib/python3.5/site-packages/itchatmp/controllers/common.py", line 19, in determine_wrapper
**return mpFn(*args, kwargs)
File "/root/anaconda3/envs/itchatmp/lib/python3.5/site-packages/itchatmp/controllers/mpapi/base/common.py", line 147, in __access_token
updateResult = tokenFn()
File "/root/anaconda3/envs/itchatmp/lib/python3.5/site-packages/itchatmp/controllers/mpapi/base/common.py", line 80, in _update_access_token
r = ReturnValue(r)
File "/root/anaconda3/envs/itchatmp/lib/python3.5/site-packages/itchatmp/returnvalues.py", line 30, in init
Future.init(self)
File "/root/anaconda3/envs/itchatmp/lib/python3.5/asyncio/futures.py", line 169, in init
self._loop = events.get_event_loop()
File "/root/anaconda3/envs/itchatmp/lib/python3.5/asyncio/events.py", line 678, in get_event_loop
return get_event_loop_policy().get_event_loop()
File "/root/anaconda3/envs/itchatmp/lib/python3.5/asyncio/events.py", line 584, in get_event_loop
% threading.current_thread().name)
RuntimeError: There is no current event loop in thread 'Thread-9'.

asn1crypto==0.24.0
certifi==2018.4.16
cffi==1.11.5
chardet==3.0.4
cryptography==2.2.2
future==0.16.0
futures==3.1.1
idna==2.6
itchatmp==0.0.17
Pillow==5.1.0
pycparser==2.18
pylibmc==1.5.2
PyMySQL==0.8.0
python-memcached==1.59
pyzbar==0.1.5
requests==2.18.4
six==1.11.0
tornado==5.0.2
urllib3==1.22

$ pip install itchatmp
Requirement already satisfied: itchatmp in /python3.5/site-packages (0.0.17)
Requirement already satisfied: futures in /python3.5/site-packages (from itchatmp) (3.1.1)
Requirement already satisfied: tornado in /python3.5/site-packages (from itchatmp) (5.0.2)
Requirement already satisfied: cryptography in /python3.5/site-packages (from itchatmp) (2.2.2)
Requirement already satisfied: requests in /python3.5/site-packages (from itchatmp) (2.18.4)
Requirement already satisfied: six>=1.4.1 in /python3.5/site-packages (from cryptography->itchatmp) (1.11.0)
Requirement already satisfied: asn1crypto>=0.21.0 in /python3.5/site-packages (from cryptography->itchatmp) (0.24.0)
Requirement already satisfied: cffi>=1.7; platform_python_implementation != "PyPy" in /python3.5/site-packages (from cryptography->itchatmp) (1.11.5)
Requirement already satisfied: idna>=2.1 in /python3.5/site-packages (from cryptography->itchatmp) (2.6)
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in /python3.5/site-packages (from requests->itchatmp) (3.0.4)
Requirement already satisfied: certifi>=2017.4.17 in /python3.5/site-packages (from requests->itchatmp) (2018.4.16)
Requirement already satisfied: urllib3<1.23,>=1.21.1 in /python3.5/site-packages (from requests->itchatmp) (1.22)
Requirement already satisfied: pycparser in /python3.5/site-packages (from cffi>=1.7; platform_python_implementation != "PyPy"->cryptography->itchatmp) (2.18)

[minkoonim]

我想过把脚本从头到底改成 python2.7的样子，
可是应该怪我入门就学 python3。。
实在改不来啊 各种错误