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

If what you are looking for is a way to get easy-to-use initialization syntax - consider creating a subclass of OrderedDict and adding operators to it that update the dict, for example:

from collections import OrderedDict

class OrderedMap(OrderedDict):
    def __add__(self,other):
        self.update(other)
        return self

d = OrderedMap()+{1:2}+{4:3}+{"key":"value"}

d will be- OrderedMap([(1, 2), (4, 3), ('key','value')])

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Another possible syntactic-sugar example using the slicing syntax:

class OrderedMap(OrderedDict):
    def __getitem__(self, index):
        if isinstance(index, slice):
            self[index.start] = index.stop 
            return self
        else:
            return OrderedDict.__getitem__(self, index)

d = OrderedMap()[1:2][6:4][4:7]["a":"H"]