我从digital ocean买了一台linux机器，现在我正试图在venv中安装tensorflow，但它给了我一个错误。请帮助我
Traceback (most recent call last):
File "/home/peter/flaskapp/flaskappenv/lib/python3.6/site-packages/pip/_internal/cli/base_command.py", line 210, in _main
.
.
.
File "/home/peter/flaskapp/flaskappenv/lib/python3.6/site-packages/pip/_vendor/cachecontrol/serialize.py", line 72, in dumps
return b",".join([b"cc=4", msgpack.dumps(data, use_bin_type=True)])
MemoryError
我只是升级pip-install——没有缓存目录——用这个升级tensorflow，它对我有效