MultiValueDictKeyError double quotes missing str keys in error messages

[petedmarsh]

With a builtin dict a KeyError error message looks like this:

>>> {}['key']
#...
KeyError: 'key'

However, with MultiValueDict the error message looks like this:

MultiValueDict()['key']
#...
django.utils.datastructures.MultiValueDictKeyError: "'key'"

I was a bit surprised when I first noticed this, as at first glance it looked as if I had somehow quoted some keys ('key' rather than just key) before looking them up in a dictionary.

[Tim Graham]

​PR

[Tim Graham <timograham@…>]

In 14671aff:

Fixed #28064 -- Removed double-quoting of key names in MultiValueDictKeyError.