如何在Python中快速画图--使用Jupyter notebook的魔法函数(magic function)matplotlib inline 先展示一段相关的代码: #we test the accuracy of knn and find the k which makes the biggest accuracy k_range=list(range(1,26))#[1,25] scores=[] for k in k_range: knn=KNeighborsClassifier(n_
在绘图的时候import matplotlib.pyplot as plt报错:ImportError: No module named '_tkinter', please install the python-tk package 报错原因:没有安装Tkinter 解决方法:sudo apt-get install python-tk 切记,不要用pip解决,pip不能解决问题
pycharm报错:ImportError: libcusolver.so.8.0: cannot open shared object file: No such file or directory 解决办法: Run -> Edit Configurations 在Environment variables中添加: LD_LIBRARY_PATH=/usr/local/cuda-8.0/lib64 如下图所示: 点击ok, 然后Apply即可.
1.问题: Springboot项目直接启动不报错,打war包放到外部容器Tomcat.东方通上,在@Weblistener注解的监听器类中报错 One or more listener fail to start 具体报错是在类构造器中,调用@Service注解的类的实例时,发生空指针异常 2.原代码: private final XxxService xxxService; public XxxListener(XxxService xxxService){ this.xxxService