一、准备工作：
yum install zlib-devel
yum install openssl-devel
二、安装python3.5
wget https://www.python.org/ftp/python/3.5.3/Python-3.5.3.tgz
tar -zxvf Python-3.5.3.tgz
cd Python-3.5.3
./configure --prefix=/usr/local/python3 --enable-shared
make && make install
三、替换系统中的python
mv /usr/bin/python python.bak
ln -s /usr/local/python3.5/bin/python3 /usr/bin/python
由于更改系统默认的python会影响yum，需修改如下两个文件：
/usr/bin/yum和/usr/libexec/urlgrabber-ext-down
Known problems with Fedora Linux and Python 3 version: Error message:
# yum search package
File "/usr/bin/yum", line 30
except KeyboardInterrupt, e:
^
SyntaxError: invalid syntax
If you set python3 globally on your system change the yumshebang to python2:
# vi /usr/bin/yum
FROM:
#!/usr/bin/python
TO:
#!/usr/bin/python2.7
Similarly: Error message:
Downloading packages:
File "/usr/libexec/urlgrabber-ext-down", line 28
except OSError, e:
^
SyntaxError: invalid syntax
Exiting on user cancel
The issue is also related to Python 3 set as a default global version. To fix this error update/usr/libexec/urlgrabber-ext-down script:
# vi /usr/libexec/urlgrabber-ext-down
FROM:
#!/usr/bin/python
TO:
#!/usr/bin/python2.7
四、安装setuptools
wget --no-check-certificate https://pypi.python.org/packages/source/s/setuptools/setuptools-19.6.tar.gz#md5=c607dd118eae682c44ed146367a17e26
tar -zxvf setuptools-19.6.tar.gz
cd setuptools-19.6
python3 setup.py build
python3 setup.py install
(如有报错： RuntimeError: Compression requires the (missing) zlib module，则需要安装yum install zlib-devel，安装后要重新编译 python3.5:
make && make install)
五、安装pip
wget --no-check-certificate https://pypi.python.org/packages/source/p/pip/pip-8.0.2.tar.gz#md5=3a73c4188f8dbad6a1e6f6d44d117eeb
tar -zxvf pip-8.0.2.tar.gz
cd pip-8.0.2
python3 setup.py build
python3 setup.py install
使用pip安装包测试：
如报错，则缺少yum install openssl-devel,安装完成后一样需要重新编译python3.5（make&&make install）
[root@localhost pip-9.0.1]# python -m pip install paramiko
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Collecting paramiko
Could not fetch URL https://pypi.python.org/simple/paramiko/: There was a problem confirming the ssl certificate: Can't connect to HTTPS URL because the SSL module is not available. - skipping
Could not find a version that satisfies the requirement paramiko (from versions: )
No matching distribution found for paramiko
参考：