Debian for ARM install python 3.5.x

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 *                   Debian for ARM install python 3.5.x
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1. ref:
    1. Download Page for python3.5_3.5.3-1_armhf.deb on ARM Hard Float machines
        https://packages.debian.org/sid/armhf/python3.5/download

2. resolve:
    You should be able to use any of the listed mirrors by adding a line to your /etc/apt/sources.list like this:

    deb http://ftp.de.debian.org/debian sid main 

3. pip:
   1. How to install pip with Python 3?
        http://stackoverflow.com/questions/6587507/how-to-install-pip-with-python-3
   2. install module:
       root@aplex:/# pip3 install python-can
        qemu: Unsupported syscall: 384
        The directory ‘/home/aplex/.cache/pip/http‘ or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo‘s -H flag.
        The directory ‘/home/aplex/.cache/pip‘ or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo‘s -H flag.
        Collecting python-can
          Downloading python_can-1.5.2-py3-none-any.whl (79kB)
              100% |████████████████████████████████| 81kB 164kB/s 
              Installing collected packages: python-can
              Successfully installed python-can-1.5.2