參考:
https://www.cnblogs.com/mqxs/p/9103031.html
https://www.cnblogs.com/cerutodog/p/9908574.html
確認環境 系統版本
openssl版本
[root@67 local]# openssl version
OpenSSL 1.0.2k-fips 26 Jan 2017
OPS,居然新安裝的centOS系統自帶的就是1.0.2版本,這是不是意味着我可以很輕松的安裝好python,然后import ssl就不會報錯,而不用再去額外配置openssl了呢
?期待的搓搓手(原因是python3需要要注意的地方是版本要1.02以上版本才能正常使用像requests之類的庫)
為了避免后面報各種錯,我們先把需要的信賴包安裝上,再安裝python3
執行完make&&make install之后，可能會出現這種報錯：
“ModuleNotFound：No module named '_ctypes'”這里需要執行：
yum install libffi-devel -y
安裝python3.6可能使用的依賴
yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel gcc gcc-c++ openssl-devel
[root@67 local]# yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel gcc gcc-c++ openssl-devel
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
Package 1:openssl-devel-1.0.2k-16.el7_6.1.x86_64 already installed and latest version
Package bzip2-devel-1.0.6-13.el7.x86_64 already installed and latest version
Package expat-devel-2.1.0-10.el7_3.x86_64 already installed and latest version
Package gdbm-devel-1.10-8.el7.x86_64 already installed and latest version
Package readline-devel-6.2-10.el7.x86_64 already installed and latest version
Package sqlite-devel-3.7.17-8.el7.x86_64 already installed and latest version
Package gcc-4.8.5-36.el7_6.2.x86_64 already installed and latest version
Package gcc-c++-4.8.5-36.el7_6.2.x86_64 already installed and latest version
Package 1:openssl-devel-1.0.2k-16.el7_6.1.x86_64 already installed and latest version
Nothing to do
[root@67 local]# yum install libffi-devel -y
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
Package libffi-devel-3.0.13-18.el7.x86_64 already installed and latest version
下面開始安裝,太緊張了
建立一個文件夾安裝python3
mkdir /usr/local/python3
下載安裝文件
下載
wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tgz
解壓
tar -xf Python-3.6.2.tgz
進入目錄
cd Python-3.6.2
安裝python3 （要注意如果你的ssl也是指定目錄安裝的 --with要跟上路徑）
./configure --prefix=/usr/local/python3 --with-ssl
編譯,安裝,這一步會花的時間長一點
make && make install
安裝完成
創建軟連接之前先驗證一下環境
cd /usr/local/python3/bin/
cd /usr/bin
最后創建軟連接
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
建立軟鏈接后
接下來就是要驗證的時候,太緊緊緊張了
驗證通過了~ 激動呀 開心呀,上次在centOS6.5搞這一套流程,一直有問題,整了周五下午到凌晨3點,周六下午7點到凌晨1點,整個人都不好了.
居然重裝一次系統就解決問題了.
centOS7.6 自帶的openSSL版本就可以支持python3了,無須再做配置,這真是省了好多心呀
