Internal Server Error in 0.15.0

[Felix2yu]

In version 0.15.0, if the interface language is changed to [中文 (Chinese)]. Clicking the preferences again will display an internal service error. In version 0.14, there is no such problem.

Internal Server Error

The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.

ERROR:flask.app:Exception on /preferences [GET]
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/flask/app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/lib/python3.6/site-packages/flask/app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/lib/python3.6/site-packages/flask/app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/usr/lib/python3.6/site-packages/flask/app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/lib/python3.6/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/usr/local/searx/searx/webapp.py", line 725, in preferences
    preferences=True)
  File "/usr/local/searx/searx/webapp.py", line 397, in render
    '{}/{}'.format(kwargs['theme'], template_name), **kwargs)
  File "/usr/lib/python3.6/site-packages/flask/templating.py", line 135, in render_template
    context, ctx.app)
  File "/usr/lib/python3.6/site-packages/flask/templating.py", line 117, in _render
    rv = template.render(context)
  File "/usr/lib/python3.6/site-packages/jinja2/asyncsupport.py", line 76, in render
    return original_render(self, *args, **kwargs)
  File "/usr/lib/python3.6/site-packages/jinja2/environment.py", line 1008, in render
    return self.environment.handle_exception(exc_info, True)
  File "/usr/lib/python3.6/site-packages/jinja2/environment.py", line 780, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/lib/python3.6/site-packages/jinja2/_compat.py", line 37, in reraise
    raise value.with_traceback(tb)
  File "/usr/local/searx/searx/templates/oscar/preferences.html", line 2, in top-level template code
    {% extends "oscar/base.html" %}
  File "/usr/local/searx/searx/templates/oscar/base.html", line 82, in top-level template code
    {% block content %}
  File "/usr/local/searx/searx/templates/oscar/preferences.html", line 78, in block "content"
    {% set method_info = _('Change how forms are submited, <a href="http://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol#Request_methods" rel="external">learn more about request methods</a>') %}
  File "/usr/lib/python3.6/site-packages/jinja2/ext.py", line 134, in _gettext_alias
    return __context.call(__context.resolve('gettext'), *args, **kwargs)
  File "/usr/lib/python3.6/site-packages/jinja2/ext.py", line 143, in gettext
    return rv % variables
  File "/usr/lib/python3.6/site-packages/markupsafe/__init__.py", line 102, in __mod__
    return self.__class__(text_type.__mod__(self, arg))
  File "/usr/lib/python3.6/site-packages/markupsafe/__init__.py", line 315, in __float__
    return float(self.obj)
TypeError: float() argument must be a string or a number, not 'dict'

[iiivii]

yes,I also have the same problem.

[bourrel]

Can you try with this branch #1481 ? It updates jinja2 which seems to be part of the problem here.

[kvch]

I have tested the branch with the package updates. Unfortunately, jinja update does not help.
It seems like the UI cannot show the translated version of "Change how forms are submited, <a href="http://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol#Request_methods" rel="external">learn more about request methods</a>". I am still looking into the issue.

[kvch]

The translation seems to be incorrect.
The following URL

https://zh.wikipedia.org/wiki/%E8%B6%85%E6%96%87%E6%9C%AC%E4%BC%A0%E8%BE%93%E5%8D%8F%E8%AE%AE#%E8%AF%B7%E6%B1%82%E6%96%B9%E6%B3%95

should be

https://zh.wikipedia.org/wiki/超文本传输协议#请求方法

in the translation.

[kvch]

I updated it on Transifex.

[asciimoo]

Fixed by @kvch