Laurent Bachelier authored Aug 01, 2018 and Romain Bignon committed Dec 21, 2018

simplejson has an internal way of formatting Decimal so it bypasses our
formatter.
Since weboob often deals with money, floats are not a good idea.

Previousl:
Decimal('1.1') => 1.1 with simplejson+WeboobEncoder
Decimal('1.1') => '1.1' with json+WeboobEncoder
Now both give '1.1'.

Under simplejson:
Using dump(cls=...) always initialize the Encoder class with the
use_decimal=True argument (unless the argument is provided in the dump
function, but that requires a lot of alteration in Weboob, and I would
rather remove simplejson support altogether). So when present, we force it.

Under json:
There is no use_decimal, so we already go to the default() method of the
Encoder.