AttributeError: module 'httpcore' has no attribute 'NetworkBackend'

[borborich]

File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/flask_wtf/init.py", line 1, in from .csrf import CSRFProtect File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/flask_wtf/csrf.py", line 16, in from wtforms import ValidationError File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/wtforms/init.py", line 1, in from wtforms import validators File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/wtforms/validators.py", line 7, in import email_validator File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/email_validator/init.py", line 6, in import dns.resolver File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/dns/resolver.py", line 30, in import dns._ddr File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/dns/_ddr.py", line 12, in import dns.nameserver File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/dns/nameserver.py", line 5, in import dns.asyncquery File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/dns/asyncquery.py", line 38, in from dns.query import ( File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/dns/query.py", line 67, in _CoreNetworkBackend = httpcore.NetworkBackend AttributeError: module 'httpcore' has no attribute 'NetworkBackend'