交互式編程之Golang基本配置（Jupyter-notebooks Golang)

JupyterNoteBook-GO

• 啟動錯誤
• Install Go
• Install gophernotes
• 參考資料

如有錯誤，歡迎指出

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錯誤

error: Cannot assign requested address
無法將當前地址分配給jupyter notebook

c.NotebookApp.ip='123.21.242.32'
c.NotebookApp.password = u'sha1:f012129dbf38:a3673a44bc5145ef336ea6940db21676fce9f85a'
c.NotebookApp.open_browser = False
c.NotebookApp.port = 8888
c.NotebookApp.notebook_dir = '/root/home/Jupyter/'
c.InteractiveShellApp.matplotlib = 'inline'

解決:將c.NotebookApp.ip改成0.0.0.0

c.NotebookApp.ip='0.0.0.0'
c.NotebookApp.password = u'sha1:f012129dbf38:a3673a44bc5145ef336ea6940db21676fce9f85a'
c.NotebookApp.open_browser = False
c.NotebookApp.port = 8888
c.NotebookApp.notebook_dir = '/root/home/Jupyter/'
c.InteractiveShellApp.matplotlib = 'inline'

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Install-Go

golang源碼
解壓安裝包
wget https://golang.org/dl/獲取軟件包
tar -C /usr/local go*將壓縮包解壓至/usr/local，此路徑為官方推薦
export PATH=/usr/local/go/bin:$PATH配置命令環境

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Install gophernotes

gophernotes是go內核，jupyter notebook需要安裝其才能使用go來啟用交互式編程
官方教程

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Question1:無法尋找命令

error: command not found: gophernotes
如果輸入gophernotes提示沒有此命令，即可以按以下解決
find / -name 'gophernotes'尋找系統gophernotes命令
例如返回路徑/root/go/bin:$PATH
export PATH=/root/go/bin:$PATH
正常即可獲取響應2019/02/25 15:43:04 Need a command line argument specifying the connection file.

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Question2:內存不足，溢出

error: fatal error: runtime: out of memory
內存過小，造成溢出。
解決方案:建立swap分區
圖片摘自參考資料2

Question3:jupyter內核錯誤，提示沒有gophernotes文件或文件夾

修改kernels中gophernotes的kernel.json中argv的參數

# 原來的
{
    "argv": [
		"gophernotes",
    	"{connection_file}"
    	],
    "display_name": "Go",
    "language": "go",
    "name": "go"
}

# 現在的，將命令變成絕對路徑
{
    "argv": [
		"/root/go/bin/gophernotes",
    	"{connection_file}"
    	],
    "display_name": "Go",
    "language": "go",
    "name": "go"
}

重啟jupyter-notebook即可

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參考資料

1.gophernotes的github教程
2.如何建立swap分區
3.WillZhuang的博客之內存溢出解決
4.缺少libzmq的問題