JSON-Encoding for anytree.exporter does not support cyrillic

[IDrei]

Hello! Please, help me!!! I've built tree in Python using Anytree. Then I've exported it to JSON. After import tree from file I've got normal symbols. The problem is that JSON-file include 'bad' symbols instead of normal cyrillic. Here is a sample of code:

import smart_open
import json, pprint
from anytree import AnyNode, RenderTree
from anytree.exporter import JsonExporter
from anytree.importer import JsonImporter
json_file = r'd:\temp\test.json'
#building tree
root = AnyNode(uk = 'узел-0', parent=None)
b = AnyNode(uk = 'узел-01', parent=root)
a = AnyNode(uk = 'узел-011',parent=b)
g = AnyNode(uk = 'узел-021', parent = root)
print()
print('Tree for export:')
print(RenderTree(root).by_attr('uk'))
#export
exporter = JsonExporter(indent=2, sort_keys=True)
data = exporter.export(root)
with open(json_file, 'w', encoding='utf-8') as outfile:
    json.dump(data, outfile, ensure_ascii=False)
#import
importer = JsonImporter()
with open(json_file, encoding='utf-8') as json_file:
    data = json.load(json_file)
root = importer.import_(data)
print()
print('Imported tree:')
print(RenderTree(root).by_attr('uk'))
#print bad json
print()
print('data in JSON-file:')
pprint.pprint(data)

The result is:

Tree for export: узел-0 ├── узел-01 │ └── узел-011 └── узел-021

Imported tree: узел-0 ├── узел-01 │ └── узел-011 └── узел-021

data in JSON-file: ('{\n' ' "children": [\n' ' {\n' ' "children": [\n' ' {\n' ' "uk":"\u0443\u0437\u0435\u043b-011"\n' ' }\n' ' ],\n' ' "uk": "\u0443\u0437\u0435\u043b-01"\n' ' },\n' ' {\n' ' "uk": "\u0443\u0437\u0435\u043b-021"\n' ' }\n' ' ],\n' ' "uk": "\u0443\u0437\u0435\u043b-0"\n' '}')

While writing cyrillic to JSON is ok.

I've already asked on stackoverflow, but noone helped ( https://stackoverflow.com/questions/64914065/json-encoding-for-anytree-exporter-does-not-support-cyrillic )

[IDrei]

The answer is:

JsonExporter(indent=2, sort_keys=True, ensure_ascii=False)