Override the {…} notation so i get an OrderedDict() instead of a dict()?

Question

Update: dicts retaining insertion order is guaranteed for Python 3.7+

I want to use a .py file like a config file. So using the {.

Answer 1

What you are asking for is impossible, but if a config file in JSON syntax is sufficient you can do something similar with the json module:

>>> import json, collections
>>> d = json.JSONDecoder(object_pairs_hook = collections.OrderedDict)
>>> d.decode('{"a":5,"b":6}')
OrderedDict([(u'a', 5), (u'b', 6)])