安装python3.7 报错 ModuleNotFoundError: No module named '_ctypes'的解决办法

Contos   解决：

 一  3.7版本需要一个新的包libffi-devel，安装此包之后再次进行编译安装即可。

#yum install libffi-devel -y
#make install

若在安装前移除了/usr/bin下python的文件链接依赖，此时yum无法正常使用，需要自己下载相关软件包安装，为节省读者时间，放上链接

#wget http://mirror.centos.org/centos/7/os/x86_64/Packages/libffi-devel-3.0.13-18.el7.x86_64.rpm
#rpm -ivh libffi-devel-3.0.13-18.el7.x86_64.rpm

安装完成后重新进行make install，结束后再次配置相关文件的软连接即可。

建立python3的软链

1
# ln -s /usr/local/python3/bin/python3 /usr/bin/python3

再不行 就这样子 ：

yum -y groupinstall "Development tools"
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
yum install libffi-devel -y

 

Ubuntu ：

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

https://www.jianshu.com/p/d5e8704c9fb7

https://blog.youkuaiyun.com/qq_36416904/article/details/79316972