py.lib: type_utils/json_tools.py annotate

awgur@38	1 # coding: utf-8
awgur@38	2 from dataclasses import is_dataclass, asdict
awgur@38	3
awgur@38	4
awgur@38	5 def json_type_sanitizer(val):
awgur@38	6 """\
awgur@38	7 Преобразует значение ``val`` в пригодное для преобразования в json значение.
awgur@38	8 """
awgur@38	9
awgur@38	10 val_t = type(val)
awgur@38	11
awgur@38	12 if is_dataclass(val):
awgur@38	13 return json_type_sanitizer(asdict(val))
awgur@38	14
awgur@38	15 elif val_t in (int, float, str, bool) or val is None:
awgur@38	16 return val
awgur@38	17
awgur@38	18 elif val_t in (list, tuple):
awgur@38	19 return list(map(json_type_sanitizer, val))
awgur@38	20
awgur@38	21 elif val_t == dict:
awgur@38	22 return dict((key, json_type_sanitizer(d_val)) for key, d_val in val.items())
awgur@38	23
awgur@38	24 else:
awgur@38	25 return str(val)

py.lib