Filefield Validation Using Flask Not Working Properly

I'm using Flask-WTF to validate my form, but for the FileField, it's not validating properly, it doesn't detect the file. form.py class addVendorForm(Form): name = StringField(

Solution 1:

Change

form = addVendorForm(request.form)

To

form = addVendorForm()

Solution 2:

I don't see the FileRequired() validators in the doc. Have you tried Required()?