ax.xaxis.set_ticks_position('both')
ax.yaxis.set_ticks_position('both')
ax.get_xaxis().set_tick_params(which='both', direction='in')
ax.get_yaxis().set_tick_params(which='both', direction='in')
pip install --force-reinstall MySQL_python==1.2.4
sudo pip install healpy==
sudo pip install --force-reinstall healpy==1.11.0