316 lines
5.7 KiB
Markdown
316 lines
5.7 KiB
Markdown
# 原创
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： 01-第一次使用Jupyter
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# 01-第一次使用Jupyter
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# 第一次使用Jupyter
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具体见个人Python图书馆：[https://ds-ebooks.github.io](https://ds-ebooks.github.io)
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# Contents
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## 一、更改Jupyter notebook的工作空间
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[链接跳转测试](#七、Jupyter中的Markdown)
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### 1.直接在工作目录打开
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### 2.通过快捷方式属性修改
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### 3.修改config文件
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```
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# The directory to use for notebooks and kernels.
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c.NotebookApp.notebook_dir = u'D:\Jupyter'
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```
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所以，最后我选择第一种方式最直接。
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## 二、常用命令
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### 1.误删了jupyter notebook中的代码
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```
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for line in locals()['In']:
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print(line)
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```
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```
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history
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```
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### 2.jupyter魔法
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```
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# 当前目录
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%pwd
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```
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```
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u'D:\\Python\\Scripts\\notebook'
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```
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```
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%run name.py
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# 或者
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%matplotlib inline
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```
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```
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# matplotlib画图
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%matplotlib inline
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```
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```
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%%writefile foo.py
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```
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```
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%%script python
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```
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```
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%debug
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```
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```
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%autosave 3
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```
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## 三、Jupyter的各种快捷键
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## 四、Jupyter Notebook如何导入代码
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>
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即导入代码到jupyter notebook的cell中
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### 1.将本地的.py文件load到jupyter的一个cell中
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**问题背景**：有一个test.py文件，需要将其载入到jupyter的一个cell中 <br/> test.py内容如下：
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```
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print "Hello World!"
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```
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**方法步骤：**
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```
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# %load test.py
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print "HellO World!"
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```
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Shift Enter运行后，%load test.py被自动加入了注释符号#，test.py中的所有代码都被load到了当前的cell中.
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### 2.从网络load代码到jupyter
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`%load https://matplotlib.org/examples/color/color_cycle_demo.html`
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## 五、Jupyter运行python文件
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```
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%run test.py
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```
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```
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HellO World!
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```
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## 六、Jupyter一些其他琐碎用法
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### 1.jupyter的cell可以作为unix command使用
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```
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# 查看python版本：
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!python --version
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```
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```
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Python 2.7.13
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```
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```
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# 运行python文件：
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!python test.py
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```
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```
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HellO World!
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```
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### 2.Magic functions用法
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待深究：[The cell magic in Ipython](http://nbviewer.jupyter.org/github/ipython/ipython/blob/1.x/examples/notebooks/Cell%20Magics.ipynb#The-cell-magics-in-IPython)
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### 3.获取current working directory
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```
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current_path = %pwd
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print current_path
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```
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```
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D:\Python\Scripts\notebook
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```
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### 4.使用Matplotlib绘图
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```
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# 有时是弹不出图像框的，此时，可以在开头加入:
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%matplotlib inline
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```
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## 七、Jupyter中的Markdown
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### 1.链接跳转
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```
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## 一、更改Jupyter notebook的工作空间
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[链接跳转](#更改Jupyter notebook的工作空间)
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...
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<a id='七、Jupyter中的Markdown'></a>
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## 七、Jupyter中的Markdown
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```
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### 2.添加目录功能
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```
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$ pip2 install jupyter_nbextensions_configurator
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$ pip2 install jupyter_contrib_nbextensions
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```
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### 3.在Jupyter中打开md文件
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让`jupyter notebook` 生成md这个大家都会，可是在github当中有很多很好的md文件，如果不能在`jupyter notebook`当中打开体验，实在是太让人难过了。
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```
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pip install notedown
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```
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```
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c.NotebookApp.contents_manager_class = ‘notedown.NotedownContentsManager’
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```
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## 八、主题配置
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```
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pip install --upgrade jupyterthemes
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jt -l //查看能够使用得主题
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jt -t chesterish -T -N //配置主题，chesterish是主题名
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jt -r //恢复默认主题
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```
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更详细配置参考：[jupyter-themes](https://github.com/dunovank/jupyter-themes)
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## 九、Ubuntu上面存在权限问题
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### 修改权限
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```
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//问题1：jupyter无法访问python
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sudo chmod 777 ~/.local/share/jupyter/
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cd ~/.local/share/jupyter/
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ls
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sudo chmod 777 runtime/
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cd runtime/
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ls
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//2.jupyter无法访问笔记本
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//chown命令可以修改文件或目录所属的用户
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$ sudo chown 用户 目录或文件名
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//chgrp命令可以修改文件或目录所属的组
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$ sudo chgrp 组 目录或文件名
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```
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### 查看token
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```
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jupyter-notebook list
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```
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## 十、Welcome to MkDocs
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For full documentation visit [mkdocs.org](http://mkdocs.org).
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### Commands
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### Project layout
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```
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mkdocs.yml # The configuration file.
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docs/
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index.md # The documentation homepage.
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... # Other markdown pages, images and other files.
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```
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## 十一、Git基本命令
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```
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//建立本地仓库
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//初始化本地仓库
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$ git init
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//添加到暂存区
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$ git add .
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//提交到工作区
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$ git commit -m "first commit"
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//添加远程Git仓库
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$ git remote add origin https://github.com/ds19991999/VerCodeMFC.git
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//删除远程Git仓库
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$ git remote rm origin
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//合并pull两个不同的项目解决fatal: refusing to merge unrelated histories
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$ git pull origin master --allow-unrelated-histories
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//使用强制push的方法：
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$ git push -u origin master -f
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```
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## 补充
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### 指定图表格式
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`Jupyter Notebook` 用 `Matplotlib` 画出来那一坨糊糊的东西会不会跟我一样浑身难受,在画图表的时候加上最后一行就行了，指定他为`'svg'`格式:
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```
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import matplotlib
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import matplotlib.pyplot as plt
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%matplotlib inline
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%config InlineBackend.figure_format = 'svg'
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```
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### 导出md格式去掉代码
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假如你的`jupyter notebook`是导出一个报告给业务人员看的，他们不想看到那些密密麻麻的代码，只想留下`markdown`和图表，在`jupyter notebook`加入下面这段代码就好:
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```
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import IPython.core.display as di
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di.display_html('<script>jQuery(function(){if (jQuery("body.notebook_app").length == 0) { jQuery(".input_area").toggle();jQuery(".prompt").toggle();}});
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</script>', raw=True)
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```
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### matplotlib显示中文
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配置文件中加入：
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Python27
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```
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import seaborn as sns
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import sys# print sys.getdefaultencoding()# ipython notebook中默认是ascii编码
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reload(sys)
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sys.setdefaultencoding('utf8')
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```
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具体参见：[装扮你的Jupyter](https://zhuanlan.zhihu.com/p/26739300?group_id=843868091631955968)
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