Re: Error arises again and again\

# -*- coding: utf-8 -*-

"""

Contains view's decorators which automates common tasks.

"""

import traceback

from django.shortcuts import render_to_response

from django.template import RequestContext

from common.http import HttpResponseJson

def render_to(template):

    """

    Render view's output with ``template`` using ``RequestContext``.

    If decorated view returns dict object then wrap it in RequestContext and

    render the template.

    If decorated view returns non dict object then just return this object.

    Args:

        :template: path to template

    

    Example::

        @render_to('blog/index.html')

        def post_list(request):

            posts = Post.objects.all()

            return {'posts': posts,

                    }

    """

    def decorator(func):

        def wrapper(request, *args, **kwargs):

            output = func(request, *args, **kwargs)

            if not isinstance(output, dict):

                return output

            else:

                ctx = RequestContext(request)

                return render_to_response(template, output, context_instance=ctx)

        return wrapper

    return decorator

def ajax(func):

    """

    Convert views's output into JSON.

    Decorated view should return dict object.

    If ``request.method`` is not ``POST`` then deny the request.

    If view raises Exception then return JSON message with error description.

    """

    def wrapper(request, *args, **kwargs):

        if request.method == 'POST':

            try:

                response = func(request, *args, **kwargs)

            except Exception, ex:

                response = {'error': traceback.format_exc()}

        else:

            response = {'error': {'type': 403, 'message': 'Accepts only POST request'}}

        if isinstance(response, dict):

            return HttpResponseJson(response)

        else:

            return response

    return wrapper

def ajax_get(func):

    """

    Convert views's output into JSON.

    Decorated view should return dict object.

    If view raises Exception then return JSON message with error description.

    """

    def wrapper(request, *args, **kwargs):

        try:

            response = func(request, *args, **kwargs)

        except Exception, ex:

            response = {'error': traceback.format_exc()}

        if isinstance(response, dict):

            return HttpResponseJson(response)

        else:

            return response

    return wrapper

def disable_cache(func):

    def decorated(*args, **kwargs):

        resp = func(*args, **kwargs)

        resp['Pragma'] = 'no-cache'

        resp['Expires'] = '0'

        resp['Cache-Control'] = 'no-cache, no-store, must-revalidate'

        return resp

    return decorated

 

Error is 

line 61

    except Exception, ex:

                    ^

SyntaxError: invalid syntax 

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