user@localhost:~/singlebuy$ docker container logs 1e0142d61ead
[2020-03-07 21:32:42 +0000] [1] [INFO] Starting gunicorn 20.0.4
[2020-03-07 21:32:42 +0000] [1] [INFO] Listening at: http://0.0.0.0:8000 (1)
[2020-03-07 21:32:42 +0000] [1] [INFO] Using worker: gevent
[2020-03-07 21:32:42 +0000] [8] [INFO] Booting worker with pid: 8
/usr/local/lib/python3.7/dist-packages/sqlalchemy/orm/dynamic.py:48: SAWarning: On relationship User.parent, 'dynamic' loaders cannot be used with many-to-one/one-to-one relationships and/or uselist=False.  This warning will be an exception in a future release.
  "future release." % self.parent_property
[2020-03-07 21:32:52,843] ERROR in error: page_500
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/dist-packages/flask/app.py", line 1949, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python3.7/dist-packages/flask/app.py", line 1935, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/app/singlebuy/user.py", line 39, in view_wrapper
    return view(*args, **kwargs)
  File "/app/singlebuy/user.py", line 276, in settings
    return render_template('user/settings.html', **data)
  File "/usr/local/lib/python3.7/dist-packages/flask/templating.py", line 138, in render_template
    ctx.app.jinja_env.get_or_select_template(template_name_or_list),
  File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py", line 930, in get_or_select_template
    return self.get_template(template_name_or_list, parent, globals)
  File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py", line 883, in get_template
    return self._load_template(name, self.make_globals(globals))
  File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py", line 857, in _load_template
    template = self.loader.load(self, name, globals)
  File "/usr/local/lib/python3.7/dist-packages/jinja2/loaders.py", line 129, in load
    code = environment.compile(source, name, filename)
  File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py", line 638, in compile
    self.handle_exception(source=source_hint)
  File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py", line 832, in handle_exception
    reraise(*rewrite_traceback_stack(source=source))
  File "/usr/local/lib/python3.7/dist-packages/jinja2/_compat.py", line 28, in reraise
    raise value.with_traceback(tb)
  File "/app/singlebuy/templates/user/settings.html", line 12, in template
jinja2.exceptions.TemplateSyntaxError: expected token ',', got 't'