1.最小化安装centos7,在升级python3的时候会出现很多包未安装,为解决依赖关系:

yum -y install gcc gcc-c++ zlib zlib-devel libffi-devel deltarpm kernel-devel kernel-headers make
yum -y install bzip2 bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel
yum -y install xz-devel
# 为什么要分三步?因为在安装过程中一次性安装的时候,我的服务器出现了这个报错:
zvbi-fonts-0.2.35-1.el6.noarch: [Errno 256] No more mirrors to try
分开一步步安装则不报错了
wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tgz
tar xf Python-3.6.1.tgz
cd Python-3.6.1/
./configure --prefix=/usr/local/python/python3
make
make install
mv /usr/bin/python /usr/bin/python.bak
ln -s /usr/local/python/python3/bin/python3 /usr/bin/python
ln -s /usr/local/python/python3/bin/pip3 /usr/bin/pip
vi /usr/bin/yum
vi /usr/libexec/urlgrabber-ext-down
# 修改/usr/bin/yum和/usr/libexec/urlgrabber-ext-down,将 #!/usr/bin/python 改为 #!/usr/bin/python2.7

2. 这样升级出来的Python3就自动安装了setuptools和pip:

aaarticlea/png;base64,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" alt="" />

pip的位置是在/usr/local/python/python3/bin/目录下,并不在/usr/local/python/python3/lib/python3.5/site-packages/下,找了十分钟才找到解决办法.

[root@www bin]# pip -V
pip 9.0.1 from /usr/local/python/python3/lib/python3.6/site-packages (python 3.6)

python2.7安装pip

wget --no-check-certificate https://bootstrap.pypa.io/ez_setup.py
python ez_setup.py --insecure
wget https://pypi.python.org/packages/11/b6/abcb525026a4be042b486df43905d6893fb04f05aac21c32c638e939e447/pip-9.0.1.tar.gz
tar -xf pip-9.0.1.tar.gz
cd pip-9.0.1
python setup.py install

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