I want a simple way to get the repr() like string of a dict sorted by the keys.
my_print(dict(a=1, b=2, c=3)) -> "{'a': 1, 'b': 2, 'c': 3}"
My solution:
import collections
print repr(collections.OrderedDict(sorted(dict(a=1, b=2, c=3).items())))
... does not work. Here the wrong output:
OrderedDict([('a', 1), ('b', 2), ('c', 3)])
How to implement my_print()
?
This is not a solution since dicts are not sorted in Python:
print dict(a=1, b=2, c=3)
Well, you can use JSON.
import json
import collections
def my_print(x):
return json.dumps(x)
Result:
>>> my_print(collections.OrderedDict(sorted(dict(a=1, b=2, c=3).items())))
'{"a": 1, "b": 2, "c": 3}'
JSON will work only for simple types. Manually it could be done like that:
print '{' + ', '.join('%r: %r' % i for i in od.iteritems()) + '}'
where od
is collections.OrderedDict
object.
The standard dictionary in Python 3.7 is going to be ordered , and in CPython 3.6, dict
is ordered due to an implementation detail , so the following will work with Python 3.7, and probably with your Python 3.6 too:
def sorted_dict_repr(d):
return repr(dict(sorted(d.items())))
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