line 751 in matplotlib.pyplot, in the figure() function, this first block of code checks whether "num" is of type "class". Arg 2 of isinstance() is "Figure". Changing "Figure" to ...

Figure object created using "from matplotlib import figure" is not able to save figure. Code for reproduction import matplotlib.pyplot as plt import matplotlib.gridspec as gridspec from matplotlib ...

Figure Size, Aspect Ration, and DPI. Matplotlib allows the aspect ratio, DPI and figure size to be specified when the Figure object is created. You can use the figsize and dpi keyword arguments.