Install PyQt5 with Python2.7 on Mac

install.sh

cd ~
mkdir dev_tools
cd dev_tools

## download SIP source code
wget http://sourceforge.net/projects/pyqt/files/sip/sip-4.16.7/sip-4.16.7.tar.gz
tar zxf sip-4.16.7.tar.gz
cd sip-4.16.7
python configure.py
make
make install

## environ for pyQT
export PATH="/System/Library/Frameworks/Python.framework/Versions/2.7/bin:$PATH"
export PATH="/Users/dinli/Qt/5.9/clang_64/bin:$PATH"

## check for python's package path
python -c "import site; print site.getsitepackages()"

## compile pyQT ...
python configure.py \
        -q /Users/dinli/Qt/5.9/clang_64/bin/qmake \
        -d /Library/Python/2.7/site-packages/ \
        --sip /System/Library/Frameworks/Python.framework/Versions/2.7/bin/sip

make
sudo make install

## test if pyQT is installed
# test.py
import sys
from PyQt5 import QtCore, QtGui, QtWidgets

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    w = QtWidgets.QWidget()
    w.resize(250, 150)
    w.move(300, 300)
    w.setWindowTitle('Simple')
    w.show()
    sys.exit(app.exec_())

# Refs:
#   http://www.phodal.com/blog/pyqt5-mac-os-install/