[Matplotlib-users] Unable to display data using matplotlib

[Joy merwin monteiro]

The end of the error traceback says:

"

raise HTTPError(req.full_url, code, msg, hdrs, fp)
  urllib.error.HTTPError: HTTP Error 404: Not Found
"

Looks like the code is trying to access an online resource that is not
available.

Don't think it has anything to do with matplotlib.

Joy


On Fri, Oct 14, 2016 at 11:59 AM, ashwinD12 . <winash12 at gmail.com> wrote:

> Hello,
>           I am using this example from this cookbook -
> http://nbviewer.jupyter.org/github/unidata/notebook-
> gallery/blob/master/notebooks/850mb_Temperature_Advection.ipynb
>
> and I get this exception when I run it -
>
> I am wondering whether I need to matplotlib.use('Tkagg') which I did add
> but does not fix the problem.
>
> File "/usr/lib/python3/dist-packages/matplotlib/backends/backend_agg.py", line 474, in draw
> self.figure.draw(self.renderer)File "/usr/lib/python3/dist-packages/matplotlib/artist.py", line 61, in draw_wrapper
> draw(artist, renderer, *args, **kwargs)File "/usr/lib/python3/dist-packages/matplotlib/figure.py", line 1159, in draw
>  func(*args)
>  File "/usr/lib/python3/dist-packages/matplotlib/artist.py", line 61, in draw_wrapper
>  draw(artist, renderer, *args, **kwargs)
>  File "/usr/local/lib/python3.5/dist-packages/cartopy/mpl/geoaxes.py", line 355, in draw
> inframe=inframe)File "/usr/lib/python3/dist-packages/matplotlib/artist.py", line 61, in draw_wrapper
> draw(artist, renderer, *args, **kwargs)File "/usr/lib/python3/dist-packages/matplotlib/axes/_base.py", line 2324, in draw
> a.draw(renderer)File "/usr/lib/python3/dist-packages/matplotlib/artist.py", line 61, in draw_wrapper
> draw(artist, renderer, *args, **kwargs)
>  File "/usr/local/lib/python3.5/dist-packages/cartopy/mpl/feature_artist.py", line 103, in draw
> geoms = self._feature.intersecting_geometries(extent)File "/usr/local/lib/python3.5/dist-packages/cartopy/feature.py", line 113, in intersecting_geometriesreturn (geom for geom in self.geometries() if
>  File "/usr/local/lib/python3.5/dist-packages/cartopy/feature.py", line 180, in geometries
> name=self.name)
>  File "/usr/local/lib/python3.5/dist-packages/cartopy/io/shapereader.py", line 246, in natural_earthreturn ne_downloader.path(format_dict)File "/usr/local/lib/python3.5/dist-packages/cartopy/io/__init__.py", line 223, in path
> result_path = self.acquire_resource(target_path, format_dict)File "/usr/local/lib/python3.5/dist-packages/cartopy/io/shapereader.py", line 301, in acquire_resource
> shapefile_online = self._urlopen(url)File "/usr/local/lib/python3.5/dist-packages/cartopy/io/__init__.py", line 262, in _urlopenreturn urlopen(url)File "/usr/lib/python3.5/urllib/request.py", line 163, in urlopenreturn opener.open(url, data, timeout)File "/usr/lib/python3.5/urllib/request.py", line 472, in open
> response = meth(req, response)File "/usr/lib/python3.5/urllib/request.py", line 582, in http_response'http', request, response, code, msg, hdrs)File "/usr/lib/python3.5/urllib/request.py", line 504, in error
> result = self._call_chain(*args)File "/usr/lib/python3.5/urllib/request.py", line 444, in _call_chain
> result = func(*args)File "/usr/lib/python3.5/urllib/request.py", line 696, in http_error_302return self.parent.open(new, timeout=req.timeout)File "/usr/lib/python3.5/urllib/request.py", line 472, in open
> response = meth(req, response)
>  File "/usr/lib/python3.5/urllib/request.py", line 582, in http_response'http', request, response, code, msg, hdrs)
>  File "/usr/lib/python3.5/urllib/request.py", line 510, in errorreturn self._call_chain(*args)File "/usr/lib/python3.5/urllib/request.py", line 444, in _call_chain
> result = func(*args)
>  File "/usr/lib/python3.5/urllib/request.py", line 590, in http_error_default
>   raise HTTPError(req.full_url, code, msg, hdrs, fp)
>   urllib.error.HTTPError: HTTP Error 404: Not FoundTraceback (most recent call last):
>  File "tempAdv.py", line 72, in <module>
>  plt.show()
>  File "/usr/lib/python3/dist-packages/matplotlib/pyplot.py", line 244, in showreturn _show(*args, **kw)
>  File "/usr/lib/python3/dist-packages/matplotlib/backend_bases.py", line 192, in __call__
>  self.mainloop()
>
>
>  File "/usr/lib/python3/dist-packages/matplotlib/backends/backend_tkagg.py", line 74, in mainloop
>
>  Tk.mainloop()
>
>  File "/usr/lib/python3.5/tkinter/__init__.py", line 408, in mainloop
> _default_root.tk.mainloop(n)
>
>  AttributeError: 'NoneType' object has no attribute 'tk
>
>
>
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-- 
The best ruler, when he finishes his
tasks and completes his affairs,
the people say
“It all happened naturally”

                                         - Te Tao Ch'ing
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