在Centos下安裝python

1.下載python包

wget  https://www.python.org/ftp/python/3.9.10/Python-3.9.10.tgz

2.下載python3編譯的依賴包

yum install -y gcc patch libffi-devel python-devel  zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel

3.解壓縮源碼包

tar -zxvf /usr/local/software/tars/Python-3.9.10.tgz

4. 創建python的安裝目錄

mkdir -p  /usr/local/software/python

5.移動解壓后的Python源碼包到python目錄

mv  /usr/local/software/tars/Python-3.9.10   /usr/local/software/python

6.進入解壓后的目錄并且執行

cd /usr/local/software/python/Python-3.9.10./configure --prefix=/usr/local/software/python/  # 指定安裝目為/usr/local/software/python/

7.編譯

make

8.編譯安裝

make install

9.添加linux環境變量 使用root賬號

vi /etc/profile在末尾添加#pythonPATH=/usr/local/software/python/bin:$PATH保存后  執行source /etc/profile

10.修改python的鏈接指向

mv /usr/bin/python3 /usr/bin/python3.bakln -s /usr/local/software/python/bin/python3 /usr/bin/python3

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