Difference between cleaned_data and cleaned_data.get in Django

Question

I\'ve seen some samples codes like:

    def clean_message(self):
    message = self.cleaned_data[\'message\']
    num_words = len(message.split())
    if num_wor         


        

Answer 1

cleaned_data is a Python dictionary, you can access its values by:

Specifying the key between [ ]:

 self.cleaned_data[‘field’]

Using get() method:

self.cleaned_data.get(‘field’)

Difference between cleaned_data and cleaned_data.get in Django is that if the key does not exist in the dictionary, self.cleaned_data[‘field’] will raise a KeyError, while self.cleaned_data.get(‘field’) will return None.