After applying the fixes, the tutorial runs successfully. The original code failed because matplotlib 3.11.2 removed the `projection` keyword from `Figure.gca()` and used an incorrect NumPy random function, and because the IPython package was missing; the repairs switched to `Figure.add_subplot(projection='3d')`, replaced `np.random.random` with `np.random.rand`, and added IPython to the environment.
Install IPython alongside matplotlib and numpy so that the later step can import IPython.display.HTML.
The `ModuleNotFoundError: no module named 'ipython'` error occurs when you have not installed the IPython package on your system.
Replace deprecated `gca(projection='3d')` with `add_subplot(projection='3d')` per current matplotlib API, and fix `np.random.random` typo to `np.random.rand`.
matplotlib.pyplot.gca()( : Get the current Axes. [...] If there is currently no Axes on this Figure, a new one is created using `Figure.add_subplot`. (To test whether there is currently an Axes on a Figure, check whether `figure.axes` is empty. To test whether there is currently a Figure on the pyplot figure stack, check whether `pyplot.get_fignums()` is empty.)
Send them what broke and the fix, so the next reader doesn't hit the same error.
Add it to the tutorial so readers know when it was last checked.
[](https://fix-my-tutorial.onrender.com/r/ri-CSYZOyRj)
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