一、更新樹莓派系統(tǒng)固件資源

sudo apt-get update
sudo apt-get upgrade

二、安裝軟件

python3.6.6 參考

# 安裝編譯所需依賴包
sudo apt-get install build-essential tk-dev libncurses5-dev libncursesw5-dev libreadline6-dev libdb5.3-dev libgdbm-dev libsqlite3-dev libssl-dev libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev

# 安裝SSL依賴
sudo apt-get install libssl-dev


# 到官網(wǎng)下載Python3.6.6： https://www.python.org/downloads/source/
wget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tar.xz

# 解壓
tar xf Python-3.6.6.tar.xz 

# 進(jìn)入目錄
cd Python-3.6.6

# 開始編譯（時(shí)間漫長，需要等待，建議用&&把三句連在一起執(zhí)行）
sudo  ./configure
sudo make
sudo make install

# 升級(jí)pip
sudo python3.6 -m pip install --upgrade pip

為了方便輸入命令（如python或python3），我們還要?jiǎng)?chuàng)建一個(gè)鏈接：

# 先查詢本機(jī)剛裝好的Python3.6的位置
$ which python3.6
/usr/local/bin/python3.6

# 把這個(gè)python3.6的鏈接放到/usr/bin中，可供直接輸入命令
$ sudo ln -s /usr/local/bin/python3.6 /usr/bin/python

# 如果不能創(chuàng)建鏈接，遇到有重復(fù)，則查詢`python`情況，然后互相變下名字解決
$ python -V
Python 2.7.9
$ sudo mv /usr/bin/python /usr/bin/python2
$ sudo ln -s /usr/local/bin/python3.6 /usr/bin/python