Try like below.
pip install git+https://github.com/johnwheeler/flask-ask.git@v0.8.8
pip install flask-ask
#Enjoy
pip install git+https://github.com/johnwheeler/flask-ask.git@v0.8.8
pip install flask-ask
#Enjoy
# EASY-INSTALL-SCRIPT: %(spec)r,%(script_name)r
__requires__ = %(spec)r
__import__('pkg_resources').run_script(%(spec)r, %(script_name)r)