from matplotlib import pyplot as plt
from matplotlib import diagrams as mad  # new
from matplotlib.diagrams import Rectangle  # new: inherit from `matplotlib.patches.Rectangle` but with more attributes

fig, cv = mad.canvas(unit="cm")  # something like plt.subplots() but create a auto-resize canvas

rect = Rectangle((0, 0), 1.0, 2.0, figure=fig)  # a 1cm x 2cm rectancle placed at the origin
circ = cv.draw(
    (2, 0),
    shape="circle",
    radius=0.5,
    color="green",
    linestyle="dashed",
    linewidth=2,
)  # another method to draw a circle placed at (2cm, 0cm)

# get the attributes
cv.arrow(
    rect.east,   # will return (1.0, 1.0) like `.east` in TikZ
    circ.north,  # will return (2.0, 0.5) like `.north` in TikZ
)
# if you prefer the style for `matplotlib.axes.Axes.arrow`
# the above method could be overloaded as:
# cv.arrow(
#     x=rect.east.x,
#     y=rect.east.y,
#     dx=circ.north.x - rect.east.x,
#     dy=circ.north.y - rect.east.y,
# )

# "Combine shapes"
group = cv.combine()  # a matplotlib instance or even another canvas!
...
group.place((5, 3), scale=0.5)  # place & scale

fig.savefig("1.pdf", transparent=True, bbox_inches="tight")
fig.show()