The text in episode 2 "However, what if we wanted to plot some of the curves in a thick blue line?" could be misinterpreted. Someone might potentially see this as saying that the same thing can't be achieved without classes.
I'd suggest moving the quadratic_plot function further down, and show the function equivalent to the "blue plotter" example (i.e. something in which you can set a plotter state once, and carry that plotter state around). Something like this potentially:
def quadratic_plotter(a, b, c, **kwargs):
'''Plot the line a * x ** 2 + b * x + c and output to the screen.
x runs between -10 and 10, with 1000 intermediary points.
The line is plotted in the colour specified by color, and with width
linewidth.'''
fig, ax = subplots()
x = linspace(-10, 10, 1000)
ax.plot(x, a * x ** 2 + b * x + c,
color=color, linewidth=linewidth)
blue_plotter = { "color" : color,
"linewidth" : linewidth}
quadratic_plotter(1, 2, 3, **blue_plotter)
Alternatives could create the dict in a constructor, or avoid using the **kwargs to pass the arguments (i.e. pass a "state" variable).
Places to move this to could be either just before Mutation revisited``or before theInitialising instances` title (after the excercises as a callout)
https://edbennett.github.io/python-oop-novice/02-writing-classes/index.html
The text in episode 2 "However, what if we wanted to plot some of the curves in a thick blue line?" could be misinterpreted. Someone might potentially see this as saying that the same thing can't be achieved without classes.
I'd suggest moving the
quadratic_plotfunction further down, and show the function equivalent to the "blue plotter" example (i.e. something in which you can set a plotter state once, and carry that plotter state around). Something like this potentially:Alternatives could create the dict in a constructor, or avoid using the **kwargs to pass the arguments (i.e. pass a "state" variable).
Places to move this to could be either just before
Mutation revisited``or before theInitialising instances` title (after the excercises as a callout)