环境：
win7
python 2.7.14
numpy 非最新版
from flownetwork import flownetwork as fn`这里写代码片`
import networkx as nx
import matplotlib.pyplot as plt
print fn.__version__首次安装flownetwork，
pip install flownetwork
导入模块发现不能运行，缺失statsmodels库，安装后，发现ImportError: numpy.core.multiarray failed to import，是numpy的核心出了问题，卸载重装，问题解决。
但是我的版本有报错：
C:\Python27\lib\site-packages\statsmodels\compat\pandas.py:56: FutureWarning: The pandas.core.datetools module is deprecated and will be removed in a future version. Please use the pandas.tseries module instead.
from pandas.core import datetools