1、安装python3.7
更新
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo apt-get install build-essential python-dev python-setuptools python-pip python-smbus
sudo apt-get install build-essential libncursesw5-dev libgdbm-dev libc6-dev
sudo apt-get install zlib1g-dev libsqlite3-dev tk-dev
sudo apt-get install libssl-dev openssl
sudo apt-get install libffi-dev
2、下载python
wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tgz
3、解压
tar -xvzf Python-3.7.4.tgz
4、编译安装
./configure
make
sudo make install
5、删除软链接，备份
rm -rf /usr/bin/python3
rm -rf /usr/bin/pip3
6、加入python3的软连接
ln -s /usr/local/bin/python3.7 /usr/bin/python3
7、添加 pip3 的软链接
ln -s /usr/local/bin/pip3.7 /usr/bin/pip3
1、pip URL 错误
pip3 install canopen -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
2、python错误
mv init.cpython-34.pyc init.cpython-37.pyc
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