luci-app-ssrserver-python无法启动

[burgess]

手动执行命令，结果如下：

root@OpenWrt:/usr/share/ssr/shadowsocks# ./server.py
Traceback (most recent call last):
File "/usr/share/ssr/shadowsocks/./server.py", line 32, in
from shadowsocks import shell, daemon, eventloop, tcprelay, udprelay,
File "/usr/share/ssr/shadowsocks/../shadowsocks/shell.py", line 26, in
from shadowsocks.common import to_bytes, to_str, IPNetwork, PortRange
File "/usr/share/ssr/shadowsocks/../shadowsocks/common.py", line 27, in
from shadowsocks import lru_cache
File "/usr/share/ssr/shadowsocks/../shadowsocks/lru_cache.py", line 44, in
class LRUCache(collections.MutableMapping):
AttributeError: module 'collections' has no attribute 'MutableMapping'