zljubi...@gmail.com wrote: > 1. saving json will result in unordered ini file. It could be solved by > using OrderedDict that will than with json.dumps be saved to file in the > same order as options are added to the ordered dict.
dict-s are guaranteed to keep insertion order in Python 3.7, see https://docs.python.org/dev/whatsnew/3.7.html#summary-release-highlights > 2. there is a problem with datatime values because json format serialize > everything to string. I have found the solution on page > https://gist.github.com/abhinav-upadhyay/5300137, but I dislike the idea > that datetime is represented as unordered dict. When you have to change > datetime manually in the ini file by using text editor, you first have to > sort year,month,day... in order to be sure that you are setting correct > date. You're free to pick whatever serialisation you like: $ cat datetimedecoder_isoformat.py from datetime import datetime import json import re def dict_to_object(d): if d.get("__type__") != "datetime": return d return datetime(*map(int, re.split("[-T:.]", d["isovalue"]))) def default(obj): if isinstance(obj, datetime): return { '__type__': 'datetime', 'isovalue': obj.isoformat() } raise TypeError original = {'name': 'foo', 'type': 'bar', 'date': datetime.now()} print("original:", original) serialized = json.dumps(original, default=default, indent=4) print("serialized:", serialized) reloaded = json.loads(serialized, object_hook=dict_to_object) print("reloaded obj:", reloaded) assert original == reloaded $ python3 datetimedecoder_isoformat.py original: {'date': datetime.datetime(2018, 8, 21, 19, 25, 16, 852379), 'type': 'bar', 'name': 'foo'} serialized: { "date": { "__type__": "datetime", "isovalue": "2018-08-21T19:25:16.852379" }, "type": "bar", "name": "foo" } reloaded obj: {'date': datetime.datetime(2018, 8, 21, 19, 25, 16, 852379), 'type': 'bar', 'name': 'foo'} -- https://mail.python.org/mailman/listinfo/python-list
