Traceback (most recent call last):

 "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)

 "/app/.heroku/python/lib/python3.4/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
utility.execute()

 "/app/.heroku/python/lib/python3.4/site-packages/django/core/management/__init__.py", line 345, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)

 "/app/.heroku/python/lib/python3.4/site-packages/django/core/management/base.py", line 348, in run_from_argv
self.execute(*args, **cmd_options)

 "/app/.heroku/python/lib/python3.4/site-packages/django/core/management/base.py", line 399, in execute
output = self.handle(*args, **options)

 "/app/.heroku/python/lib/python3.4/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 176, in handle
collected = self.collect()

 "/app/.heroku/python/lib/python3.4/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 89, in collect
self.clear_dir('')

 "/app/.heroku/python/lib/python3.4/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 210, in clear_dir
if not self.storage.exists(path):

 "/app/.heroku/python/lib/python3.4/site-packages/storages/backends/s3boto.py", line 433, in exists
k = self.bucket.new_key(self._encode_name(name))

 "/app/.heroku/python/lib/python3.4/site-packages/boto/s3/bucket.py", line 622, in new_key
raise ValueError('Empty key names are not allowed')ValueError: Empty key names are not allowed
Traceback (most recent call last):

 "/usr/local/lib/python3.4/dist-packages/nose/case.py", line 198, in runTest
self.test(*self.arg)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/testing/decorators.py", line 50, in failer
result = f(*args, **kwargs)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/testing/decorators.py", line 188, in do_test
figure.savefig(actual_fname, **self._savefig_kwarg)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/figure.py", line 1470, in savefig
self.canvas.print_figure(*args, **kwargs)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/backend_bases.py", line 2192, in print_figure
**kwargs)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/backends/backend_svg.py", line 1177, in print_svg
return self._print_svg(filename, svgwriter, fh_to_close, **kwargs)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/backends/backend_svg.py", line 1205, in _print_svg
self.figure.draw(renderer)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/artist.py", line 59, in draw_wrapper
draw(artist, renderer, *args, **kwargs)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/figure.py", line 1079, in draw
func(*args)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/artist.py", line 59, in draw_wrapper
draw(artist, renderer, *args, **kwargs)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/axes/_base.py", line 2088, in draw
a.draw(renderer)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/artist.py", line 59, in draw_wrapper
draw(artist, renderer, *args, **kwargs)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/text.py", line 538, in draw
bbox, info, descent = self._get_layout(renderer)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/text.py", line 320, in _get_layout
ismath=ismath)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/backends/backend_svg.py", line 1154, in get_text_width_height_descent
return self._text2path.get_text_width_height_descent(s, prop, ismath)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/textpath.py", line 116, in get_text_width_height_descent
font = self._get_font(prop)

 "/usr/local/lib/python3.4/dist-packages/matplotlib/textpath.py", line 60, in _get_font
font = FT2Font(fname)TypeError: First argument must be a path or file object reading bytes