Correct way to access TXT record data

[jvanasco]

I apologize for this basic question, but I can't seem to find the answer to this in the docs or examples.

My use-case is querying a DNS server for a TXT record, to ensure an ACME client has correctly set a DNS-01 authorization challenge.

I can successfully resolve the TXT record with dns.resolver.resolve(hostname, "TXT"), but I can't figure out how to correctly access the data in the response.

Inspecting the response, I found these methods/attributes that got close:

dns.rdtypes.ANY.TXT.TXT.to_text() - a string is wrapped in single and double quotes.
dns.rdtypes.ANY.TXT.TXT.to_digestable() - these bytes have a leading +
dns.rdtypes.ANY.TXT.TXT.to_wire() - these bytes have a leading +
dns.rdtypes.ANY.TXT.TXT.strings[0] - these bytes are what I want, but accessing tuple element seems wrong

Can someone point me in the right direction?

I assume that I am just stumbling against some intricacies of the DNS RFCs, and I should be using one of these methods. Based on the docs, I think the .strings tuple may be correct.

Thank you in advance.

[pspacek]

Indeed "some intricacies of the DNS RFCs" is the right bet!

TXT type is defined as non-empty sequence of strings of max. length 255. Thus the .strings.

See https://datatracker.ietf.org/doc/html/rfc1035#section-3.3.14

HTH.

[jvanasco]

Thank you so much!