cs231n作业配置

参考：https://zhuanlan.zhihu.com/p/21441838?refer=intelligentunit
1，

cd assignment1
sudo pip install virtualenv      # This may already be installed
virtualenv .env                  # Create a virtual environment
source .env/bin/activate         # Activate the virtual environment
pip install -r requirements.txt  # Install dependencies
# Work on the assignment for a while ...
#deactivate 

2，下载数据

cd cs231n/datasets 
./get_datasets.sh

3，run

source .env/bin/activate 

in your assignment folder.

4，执行

jupyter notebook

error:execution error: “”http://localhost:8888/tree“”不理解“open location”信息。 (-1708)
解决：
在Jupyter的配置目录
cd ~/.jupyter
下面新建一个文件，名称是：
touch jupyter_notebook_config.py
open jupyter_notebook_config.py
在这个文件里面加入3行代码：
c.NotebookApp.browser = u’Safari’
c.NotebookApp.token = ”
c.NotebookApp.password = ”

再执行jupyter notebook
macox会报错：RuntimeError: Python is not installed as a framework.
解决：原文作业页面给出来了，先退出jupyter notebook，然后：

sh start_ipython_osx.sh

在jupyter notebook中有很多的cell，shift+enter可以运行鼠标点的cell，所有cell变量共享