Django form.is_valid returns false when a FileField is set to required

Question

So I'm trying to make a form in Django with a FileField.
My forms.py looks like this:

from django import forms

class WordcloudForm(forms.Form):
    matrix = forms.FileField(required=True)
    min = forms.IntegerField(required=False)
    max = forms.IntegerField(required=False)
    # mask = forms.FileField(required=False)

I want the FileField to be a required field.
views.py:

def form(request):
    if request.method == 'POST':
        form = WordcloudForm(request.POST)
        print(form.is_valid)
        if form.is_valid():
            if 'matrix' in request.FILES:
                uploaded_matrix = request.FILES['matrix']
                print(uploaded_matrix.name, uploaded_matrix.size)
        min = form.cleaned_data['min']
        max = form.cleaned_data['max']
        print('min',min,'max',max)
        print(form.errors)

When forms.FileField(required = True) in forms.py, form.is_valid() returns false:


When forms.FileField(required=False) in forms.py, form.is_valid() returns true:

When I submit the form with forms.FileField(required = True) my print(form.errors) states: "This field is required" even though I do add a file.

I tried different file formats to make sure the problem didn't just occur with the image I was using for testing.
What am I missing?

Answer 1

As mentioned in the documentation you need to pass request.FILES along with request.POST when initiating form instance:

if request.method == 'POST':
    form = WordCloudForm(request.POST, request.FILES)
    if form.is_valid():
        # rest of the code

Also please rename your view method from form to anything meaningful, because you have a variable named form inside the method. Same with naming of variables min and max , they conflict with python's min and max functions. Your IDE is already marking them.