TemplateSyntaxError: prévu jeton ':', a"}'

C'est mon code source:

<ul class="filebase">
        {% for file in finance %}
        <li class="filelist">
            <div class="file-author"><a href="http://127.0.0.1:5000/uploads/files/{{file. filename}}">{{ file.filename }}</a></div>
            <div class="file-body">Description: {{ file.description }}</div>
            <div class="file-date">Date posted: {{ moment(file.date).fromNow() }}</div>
            <div class="delete-file"><a href="{{ url_for('.delete_file', file_name={{ file.filename }} ) }}">Delete File</a></div><br>
        </li>
        {% endfor %}

Au premier abord, mon code fonctionne, du coup j'ai une erreur comme ceci:

TemplateSyntaxError: prévu jeton ':', a"}'

Voici mon Traceback (Si vous avez besoin d'):

Traceback (most recent call last):
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\flask\app.py", line 1836, in __call__
return self.wsgi_app(environ, start_response)
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\flask\app.py", line 1820, in wsgi_app
response = self.make_response(self.handle_exception(e))
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\flask\app.py", line 1403, in handle_exception
reraise(exc_type, exc_value, tb)
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\flask\app.py", line 1817, in wsgi_app
response = self.full_dispatch_request()
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\flask\app.py", line 1477, in full_dispatch_request
rv = self.handle_user_exception(e)
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\flask\app.py", line 1381, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\flask\app.py", line 1475, in full_dispatch_request
rv = self.dispatch_request()
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\flask\app.py", line 1461, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\flask_login.py", line 758, in decorated_view
return func(*args, **kwargs)
File "C:\Users\LouieCubero\Documents\GitHub\Flasky4\app\main\views.py", line 172, in list_of_finance
return render_template('_filebase.html', finance = finance)
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\flask\templating.py", line 127, in render_template
return _render(ctx.app.jinja_env.get_or_select_template(template_name_or_list),
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\jinja2\environment.py", line 830, in get_or_select_template
return self.get_template(template_name_or_list, parent, globals)
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\jinja2\environment.py", line 791, in get_template
return self._load_template(name, self.make_globals(globals))
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\jinja2\environment.py", line 765, in _load_template
template = self.loader.load(self, name, globals)
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\jinja2\loaders.py", line 125, in load
code = environment.compile(source, name, filename)
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\jinja2\environment.py", line 554, in compile
self.handle_exception(exc_info, source_hint=source)
File "C:\Users\LouieCubero\Documents\GitHub\flasky\venv\lib\site-packages\jinja2\environment.py", line 742, in handle_exception
reraise(exc_type, exc_value, tb)
File "C:\Users\LouieCubero\Documents\GitHub\Flasky4\app\templates\_filebase.html", line 8, in template
<div class="delete-file"><a href="{{ url_for('.delete_file', file_name={{ file.filename }} ) }}">Delete File</a></div><br>
TemplateSyntaxError: expected token ':', got '}'

Merci pour l'aide!

OriginalL'auteur Louie Cubero | 2014-12-30