☑ Centos 7.4
☑ Ubuntu 14.04
☑ Ubuntu 16.04

You can find the options that Python was compiled with by using this little code snippet

import sysconfig
print(sysconfig.get_config_vars())

Install Dependencies

$ sudo yum install yum-utils
$ sudo yum-builddep python3

Sources obtained from https://www.python.org/downloads/release/python-362/

• gcc 7.1.0

ktm5j@power3 Python-3.6.2 $ ./configure --prefix=/sw/ubuntu/python/3.6.2/
ktm5j@power3 Python-3.6.2 $ make -j12
ktm5j@power3 Python-3.6.2 $ make install

/sw/ubuntu-14.04/python
├── 3.6.2
│   ├── bin
│   ├── include
│   ├── lib
│   └── share
└── current -> 3.6.2

When python3 installs, there is no binary in bin/ called python. There is python3.6.2 and python3 which is a symlink to python3.6.2. We want to create a symlink for python and for pip:

ktm5j@power3 Python-3.6.2 $ cd /sw/ubuntu-14.04/python/3.6.2/bin
ktm5j@power3 bin $ ln -s python3.6 python
ktm5j@power3 bin $ ln -s pip3.6 pip