centos7安裝pip

1.執行:yum install python-pip

若沒有python-pip包，先執行：yum -y install epel-release，再執行yum install python-pip

2.pip install --upgrade pip

centos默認安裝了python2.7

1.mkdir /usr/local/python3

2.安裝依賴包：

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
 

3.在/usr/local/python3目錄下

wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tar.xz

4.在/usr/local/python3目錄下

tar -xvf  Python-3.6.2.tar.xz
cd Python-3.6.2
./configure --prefix=/usr/local/python3
make && make install

5.切換到/usr/bin/目錄下

mv python python.bak
mv pip pip.bak

ln -s /usr/local/python3/bin/python3 /usr/bin/python
 

ln -s /usr/local/python3/bin/pip3 /usr/bin/pip

6.防止以後用yum源安裝軟件時，報錯

vi /usr/bin/yum
輸入i，把文件開頭第一行的

#!/usr/bin/python改成#!/usr/bin/python2.7

vi /usr/libexec/urlgrabber-ext-down

輸入i，把文件開頭第一行的

#!/usr/bin/python改成#!/usr/bin/python2.7

7.驗證

輸入python，進入python3.6.2

輸入python2，進入python2.7

centos7 安裝pip+python3.6