Traceback (most recent call last):


 "/Users/shoeffner/.virtualenvs/cvloop/lib/python3.6/site-packages/matplotlib/cbook/__init__.py", line 389, in process

proxy(*args, **kwargs)


 "/Users/shoeffner/.virtualenvs/cvloop/lib/python3.6/site-packages/matplotlib/cbook/__init__.py", line 227, in __call__

return mtd(*args, **kwargs)


 "/Users/shoeffner/.virtualenvs/cvloop/lib/python3.6/site-packages/matplotlib/animation.py", line 1560, in _stop

self.event_source.remove_callback(self._loop_delay)
AttributeError: 'NoneType' object has no attribute 'remove_callback'

Traceback (most recent call last):


 "manage.py", line 22, in <module>

execute_from_command_line(sys.argv)


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line

utility.execute()


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute

self.fetch_command(subcommand).run_from_argv(self.argv)


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/core/management/base.py", line 316, in run_from_argv

self.execute(*args, **cmd_options)


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/core/management/base.py", line 353, in execute

output = self.handle(*args, **options)


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/core/management/base.py", line 83, in wrapped

res = handle_func(*args, **kwargs)


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/core/management/commands/makemigrations.py", line 103, in handle

loader.check_consistent_history(connection)


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/db/migrations/loader.py", line 281, in check_consistent_history

applied = recorder.applied_migrations()


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/db/migrations/recorder.py", line 61, in applied_migrations

if self.has_table():


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/db/migrations/recorder.py", line 44, in has_table

return self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor())


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/db/backends/base/base.py", line 255, in cursor

return self._cursor()


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/db/backends/base/base.py", line 232, in _cursor

self.ensure_connection()


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection

self.connect()


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/db/backends/base/base.py", line 193, in connect

conn_params = self.get_connection_params()


 "/usr/local/pyEnvs/blog/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 201, in get_connection_params

if settings_dict['HOST'].startswith('/'):
AttributeError: 'NoneType' object has no attribute 'startswith'
