Confluence: Comment with broken encoding in confluence.attach_file()

[stayathome]

If I use comment with non-ANSI characters for attachment, l get comment with incorrect encoding.
Code:

from atlassian import Confluence

confluence = Confluence(
    url='http://confluence.host',
    username='user',
    password='pass')

confluence.attach_content(content='This is a test attachment', name='test.txt', page_id="111111", comment='Тест кодування Test of encoding')

Got comment:

Те�� код�ванн� Test of encoding

Seems like bug in Confluence REST API on version 7.3.4

[stayathome]

See also: https://jira.atlassian.com/browse/CONFSERVER-52492

[gonchik]

from python 3.x works properly