Traceback (most recent call last):


 "<stdin>", line 1, in <module>
TypeError: descriptor 'append' of 'list' object needs an argument

Traceback (most recent call last):


 "C:\dev\workspaces\Python_playground\layout3.py", line 20, in <module>

fig.tight_layout(rect=[0, 0, 1, 0.95])


 "C:\Program 
s\Python37\lib\site-packages\matplotlib\figure.py", line 2374, in tight_layout

pad=pad, h_pad=h_pad, w_pad=w_pad, rect=rect)


 "C:\Program 
s\Python37\lib\site-packages\matplotlib\tight_layout.py", line 379, in get_tight_layout_figure

left += kwargs["left"]
TypeError: 'NoneType' object is not subscriptable
