python APSYNSIM_Python3.py crashes when launching it

[Marc Rosanes Siscart]

Using Python3, and launching:

python APSYNSIM_Python3.py
it crashes with:

Traceback (most recent call last):
  File "APSYNSIM_Python3.py", line 3160, in <module>
    myint = Interferometer(tkroot=root)
  File "APSYNSIM_Python3.py", line 294, in __init__
    self.GUI() #makefigs=makefigs)
  File "APSYNSIM_Python3.py", line 343, in GUI
    self.spherePlot = pl.axes([0.53,0.82,0.12,0.12],projection='3d',aspect='equal')
  File "/usr/lib/python3/dist-packages/matplotlib/pyplot.py", line 872, in axes
    return gcf().add_axes(arg, **kwargs)
  File "/usr/lib/python3/dist-packages/matplotlib/figure.py", line 1257, in add_axes
    a = projection_class(self, rect, **kwargs)
  File "/usr/lib/python3/dist-packages/mpl_toolkits/mplot3d/axes3d.py", line 101, in __init__
    super().__init__(fig, rect, frameon=True, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/matplotlib/axes/_base.py", line 509, in __init__
    self.update(kwargs)
  File "/usr/lib/python3/dist-packages/matplotlib/artist.py", line 974, in update
    ret = [_update_property(self, k, v) for k, v in props.items()]
  File "/usr/lib/python3/dist-packages/matplotlib/artist.py", line 974, in <listcomp>
    ret = [_update_property(self, k, v) for k, v in props.items()]
  File "/usr/lib/python3/dist-packages/matplotlib/artist.py", line 971, in _update_property
    return func(v)
  File "/usr/lib/python3/dist-packages/matplotlib/axes/_base.py", line 1280, in set_aspect
    raise NotImplementedError(
NotImplementedError: It is not currently possible to manually set the aspect on 3D axes
---

Following the solution on:
https://github.com/matplotlib/matplotlib/issues/16568
I modified the line 343
    self.spherePlot = pl.axes([0.53,0.82,0.12,0.12],projection='3d',aspect='equal')
by
    self.spherePlot = pl.axes([0.53,0.82,0.12,0.12],projection='3d')

Now it works, and Apsynsim launches correctly, but I'm afraid I have broken the 3D sphere (which appears in grey floating on the GUI).