CentOS 7.X 升級 Python 3.9.5

1. 安裝依賴關系

yum -y install gcc python36-devel bzip2-devel sqlite-devel openssl-devel readline-devel xz-devel xz-devel tk-devel gdbm-devel libffi-devel

2. 下載和安裝python包

cd /usr/local/src
wget https://www.python.org/ftp/python/3.9.5/Python-3.9.5.tgz
tar zxvf Python-3.9.5.tgz
cd Python-3.9.5/
./configure --prefix=/usr/local/python3.9 --with-ssl
make && make install

3. 修改軟連接

1. ln -fs /usr/local/python3.9/bin/python3.9 /usr/bin/python
   ln -fs /usr/local/python3.9/bin/python3.9 /usr/bin/python3
   ln -fs /usr/local/python3.9/bin/pip3.9 /usr/bin/pip
   ln -fs /usr/local/python3.9/bin/pip3.9 /usr/bin/pip3
   
   

2. 5.修改yum文件

3. vi /usr/bin/yum
   vi /usr/libexec/urlgrabber-ext-down 第一行改都修改為: (原因是安裝了python3.8,CentOS 7.X 自帶的yum采用的是python2.X，當系統將python升級到2.7 或3.X后，出現語法解釋錯誤)

4. #!/usr/bin/python2.7

5. 6.升級pip

6. python -m pip install --upgrade pip

出現錯誤必須：

ln -fs /usr/local/python3.9/bin/python3.9 /usr/bin/python
ln -fs /usr/local/python3.9/bin/python3.9 /usr/bin/python3
ln -fs /usr/local/python3.9/bin/pip3.9 /usr/bin/pip
ln -fs /usr/local/python3.9/bin/pip3.9 /usr/bin/pip3

 

必須

 

# 順手解決 Can't locate Tcl/Tk libs and/or headers
sudo yum install tcl-devel tk-devel
# 解決_ssl問題
sudo yum install openssl-devel

網上的加什么網關方法都是不行的記住了，忙了半個小時