Install Insaseis on MacOS (py3)

conda裡面的pysiede2沒有包qt binary，要執行instaseis的GUI會造成.ui無法編譯。
若用pip去裝pyside2，生活變得更簡單。 cela vous simplifiera la vie

If we want to launch instaseis GUI, install Pyside2 from pip instead of conda.

python3 environment
conda create --name py37 python=3.7
conda activate py37

pip install instaseis
pip install PySide2
pip install pyqtgraph
conda install -c anaconda basemap
python -m instaseis.gui

UPDATE 18/11/2020:
On macOS Big Sur, add the following command to make qt work again.
export QT_MAC_WANTS_LAYER=1