pylons

问题 I'm using python with pylons I want to display the saved data from a textarea in a mako file with new lines formatted correctly for display Is this the best way of doing it? > ${c.info['about_me'].replace("\n", "<br />") | n} 回答1: The problem with your solution is that you bypass the string escaping, which can lead to security issues. Here is my solution : <%! import markupsafe %> ${text.replace('\n', markupsafe.Markup('<br />'))} or, if you want to use it more than once : <%! import

问题 I am using Python and Sqlalchemy to store latitude and longitude values in a Sqlite database. I have created a hybrid method for my Location object, @hybrid_method def great_circle_distance(self, other): """ Tries to calculate the great circle distance between the two locations If it succeeds, it will return the great-circle distance multiplied by 3959, which calculates the distance in miles. If it cannot, it will return None. """ return math.acos( self.cos_rad_lat * other.cos_rad_lat * math

问题 I'm updating Pyramid/SQLAlchemy legacy code to Python 3.8 from an app working fine under Python 2.7, and running it locally. All the necessary requirements are pip installed and setup.py runs without error. On running initialise with my local .ini file, All goes well, the database tables (MariaDB) are all written. in models.py from sqlalchemy.orm import ( scoped_session, sessionmaker, relationship, backref, synonym, ) from zope.sqlalchemy import ZopeTransactionEvents #[...] DBSession = scoped

问题 How do I add a custom header to files pylons is serving from public? 回答1: a) Let your webserver serve files from /public instead of paster and configure it to pass some special headers. b) Add a special route and serve the files yourself ala class FilesController(BaseController): def download(self, path) fapp = FileApp( path, headers=self.get_headers(path) ) return fapp(request.environ, self.start_response) c) maybe there is a way to overwrite headers and i just dont know how. 回答2: With a

问题 I am attempting to use the validate decorator in Pylons with FormEncode and I have encountered an issue. I am attempting to validate a form on a controller action that requires parameters, and if the validation fails, the parameters aren't passed back in when the form is re-rendered. Here's an example. def question_set(self, id): c.question_set = meta.Session.query(QuestionSet).filter_by(id=id).first() c.question_subjects = meta.Session.query(QuestionSubject).order_by(QuestionSubject.name)

问题 I'm have an action /json that returns json from the server. Unfortunately in IE, the browser likes to cache this json. How can I make it so that this action doesn't cache? 回答1: Make sure your responses are not telling the browser that the content expires in the future. There are two HTTP headers the control this. Expires Cache-Control - There are many possible values for this header, but the one that controls expiration is max-age=foo. In addition, IE may be revalidating. This means that IE

问题 I'm have an action /json that returns json from the server. Unfortunately in IE, the browser likes to cache this json. How can I make it so that this action doesn't cache? 回答1: Make sure your responses are not telling the browser that the content expires in the future. There are two HTTP headers the control this. Expires Cache-Control - There are many possible values for this header, but the one that controls expiration is max-age=foo. In addition, IE may be revalidating. This means that IE

问题 In django, we can do this: views.py : def A(request): context = {test : 'test'} return render_to_response('index.html', context , context_instance = RequestContext(request)) def B(request): context = {} return render_to_response('index.html', context , context_instance = RequestContext(request)) index.html: {% if test %} {{ test }} {% endif %} And have our template render without error, even if i use method B , where variable 'test' does not exist, but I still can put it in the template. I

问题 I've got a pylons setup, using flup with nginx, and url.current() always returns totally wrong. I have a route: map.connect('testpage', '/test', controller='Main', action='test') And in that controller, I do url.current() and I get /test/test' instead of '/test'. I've tried changing SCRIPT_NAME` as various posts about using uwsgi suggest, but it makes no difference here. Any suggestions? 回答1: Actually it looks like I solved this. Apparently you have to set SCRIPT_NAME to '' AND restart the

问题 I add a view for the forbidden view: from pyramid.exceptions import Forbidden config.add_view(forbidden_view, context=Forbidden) which redirects to a log in screen. But now i added some admin things which needed admin access, and I want to just show a "you don't have the permission" screen, how do I check for that in the forbidden view? 回答1: I'm afraid that information is lost when Pyramid raises a Forbidden error as the result of a permission denial. There's an item in the TODO.txt to carry