I assume you’re using PIL (Python Imaging Library). You need to replace your last line with (for example, if you want to serve a PNG image): response = HttpResponse(mimetype=”image/png”) img.save(response, “PNG”) return response See here for more information.
If you’re using Class Based Views (CBVs) then passing an extra argument in the form constructor (e.g. in get_forms_class) or in form_class will not work, as <form> object is not callable will be shown. The solution for CBVs is to use get_form_kwargs(), e.g.: views.py: class MyUpdateView(UpdateView): model = MyModel form_class = MyForm # Sending user … Read more
The Problem Using a custom class derived from django.contrib.admin.AdminSite for the admin site of a project, without having to write custom registration code to register models with the new class. When I use 3rd party apps with their own models, I’d rather not have to edit custom registration code only because models were added or … Read more
Actually it’s go(-1). <input type=button value=”Previous Page” onClick=”javascript:history.go(-1);”>
You can declare an attribute on your ModelForm class, called formfield_callback. This should be a function which takes a Django model Field instance as an argument, and returns a form Field instance to represent it in the form. Then all you have to do is look to see if the model field passed in is … Read more
A little update on @alecxe response for Python 3 (io.BytesIO instead of StringIO.StringIO) and Django >= 1.5 (content_type instead of mimetype), with the fully in-memory file assembly that has since been implemented by @jmcnamara ({‘in_memory’: True}) ! Here is the full example : import io from django.http.response import HttpResponse from xlsxwriter.workbook import Workbook def your_view(request): … Read more
You need to add the package containing the executable pg_config. A prior answer should have details you need: pg_config executable not found
Yes you can. In Run -> Edit Configurations create new configuration [+] / Python Name: runserver Scrip Path: path_to/manage.py Parameters: runserver
Extending allows you to replace blocks (e.g. “content”) from a parent template instead of including parts to build the page (e.g. “header” and “footer”). This allows you to have a single template containing your complete layout and you only “insert” the content of the other template by replacing a block. If the user profile is … Read more
PyMySQL and MySQLdb provide the same functionality – they are both database connectors. The difference is in the implementation where MySQLdb is a C extension and PyMySQL is pure Python. There are a few reasons to try PyMySQL: it might be easier to get running on some systems it works with PyPy it can be … Read more