AttributeError: module 'dns.rdatatype' has no attribute '_by_text'

[vshuraeff]

hi something wrong in newer python versions or maybe pythondns is broken?

>>> from dnsknife import resolver
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "~/.asdf/installs/python/3.8.9/lib/python3.8/site-packages/dnsknife/__init__.py", line 36, in <module>
    from . import monkeypatch  # noqa
  File "~/.asdf/installs/python/3.8.9/lib/python3.8/site-packages/dnsknife/monkeypatch.py", line 9, in <module>
    dns.rdatatype._by_text['CDS'] = dns.rdatatype.CDS
AttributeError: module 'dns.rdatatype' has no attribute '_by_text'
>>> import dns
>>> dns.__version__
'2.1.0'