Ubuntu更新python3.5到python3.7

一 下载
wget https://www.python.org/ftp/python/3.7.1/Python-3.7.1rc2.tgz

二 解压
tar zxvf Python-3.7.1rc2.tgz
cd Python-3.7.1rc2

三 编译

./configure
make
make install

先找的python3.7解释器位置，一般是
/usr/local/bin/python3.7

四 删除原来的软连接

rm -rf /usr/bin/python3
rm -rf /usr/bin/pip3

五 添加python3的软链接

ln -s /usr/local/bin/python3.7 /usr/bin/python3
#添加 pip3 的软链接
ln -s /usr/local/bin/pip3.7 /usr/bin/pip3

六：问题备忘

 问题一： 报错ModuleNotFoundError: No module named '_ctypes'

  解决方法：

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

 问题二： zipimport.ZipImportError: can’t decompress data; zlib not available 

   解决方法：sudo apt-get install zlib*

问题三： 出现locations that require TLS/SSL异常处理方法

  sudo apt-get install gcc libffi-devel zlib* openssl-devel

 然后重新编辑和安装python7即可

七 参考文档：

1 https://www.cnblogs.com/demo-deng/p/10774961.html