Traceback (most recent call last):


 "C:\Users\Xin\Desktop\test_extend.py", line 37, in <module>

plt.savefig('test.png', dpi = 720)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\pyplot.py", line 689, in savefig

res = fig.savefig(*args, **kwargs)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\figure.py", line 2094, in savefig

self.canvas.print_figure(fname, **kwargs)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\backend_bases.py", line 2075, in print_figure

**kwargs)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\backends\backend_agg.py", line 510, in print_png

FigureCanvasAgg.draw(self)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\backends\backend_agg.py", line 402, in draw

self.figure.draw(self.renderer)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper

return draw(artist, renderer, *args, **kwargs)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\figure.py", line 1649, in draw

renderer, self, artists, self.suppressComposite)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images

a.draw(renderer)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper

return draw(artist, renderer, *args, **kwargs)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\axes\_base.py", line 2628, in draw

mimage._draw_list_compositing_images(renderer, self, artists)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images

a.draw(renderer)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper

return draw(artist, renderer, *args, **kwargs)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\axis.py", line 1185, in draw

ticks_to_draw = self._update_ticks(renderer)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\axis.py", line 1023, in _update_ticks

tick_tups = list(self.iter_ticks())
# iter_ticks calls the locator


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\axis.py", line 967, in iter_ticks

majorLocs = self.major.locator()


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\ticker.py", line 1985, in __call__

return self.tick_values(vmin, vmax)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\ticker.py", line 1993, in tick_values

locs = self._raw_ticks(vmin, vmax)


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\ticker.py", line 1932, in _raw_ticks

nbins = np.clip(self.axis.get_tick_space(),


 "E:\miniconda3\envs\satpy\lib\site-packages\matplotlib\axis.py", line 2159, in get_tick_space

return int(np.floor(length / size))
ValueError: cannot convert float NaN to integer

Traceback (most recent call last):


 "/usr/local/lib/python3.7/site-packages/sanic/app.py", line 603, in handle_request

response = await response


 "/usr/src/src/users/views.py", line 19, in get

create_user()


 "/usr/src/src/users/factories.py", line 7, in create_user

user = mixer.blend(UserSchema)


 "/usr/local/lib/python3.7/site-packages/mixer/main.py", line 568, in blend

return type_mixer.blend(**values)


 "/usr/local/lib/python3.7/site-packages/mixer/main.py", line 116, in blend

for name, value in defaults.items()


 "/usr/local/lib/python3.7/site-packages/mixer/main.py", line 116, in <genexpr>

for name, value in defaults.items()


 "/usr/local/lib/python3.7/site-packages/mixer/mix_types.py", line 222, in gen_value

return type_mixer.gen_field(field)


 "/usr/local/lib/python3.7/site-packages/mixer/main.py", line 193, in gen_field

return self.gen_value(field.name, field, unique=unique)


 "/usr/local/lib/python3.7/site-packages/mixer/main.py", line 247, in gen_value

field_name, self.__scheme.__name__, exc))
ValueError: Mixer (<class 'src.users.schemas.UserSchema'>): Generation for OPTIONS_CLASS (UserSchema) has been stopped. Exception: __init__() missing 1 required positional argument: 'meta'
