Python on Chromebook

Now you can enable Linux on Chromebook：

https://support.google.com/chromebook/answer/9145439?hl=en

    > setting > Linux（測試版）

Python3 is installed in default.

You can also install anaconda if you prefer:

1. download the corresponding file:
     https://www.anaconda.com/distribution/#download-section

2. run the downloaded shell file:
  ~$ sudo bash ./Anaconda3-2019.03-Linux-x86_64.sh

   Please check the following website for details:
https://chromebook.home.blog/2019/01/20/installing-anaconda-on-a-chromebook-no-dev-beta-or-crouton-needed/

Then, install VSCode from the following site:
https://code.visualstudio.com/
(1. download the deb file, 2. double-click the file to install)

* install GCC:

    $ sudo apt-get install gcc

* how to zip / unzip files:
1. install 7-zip on Linux:
      $ sudo apt-get install p7zip-full
2. zip / unzip commands:
   $ 7z a newfile_name list_of_files
   $ 7z x zipfile_name