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.. _name-helpers:
Name Helpers
------------
Sometimes you want to look up an address in the DNS instead of a name.
Dnspython provides a helper functions for converting between addresses
and their "reverse map" form in the DNS.
For example:
========= =========================================================================
Address DNS Reverse Name
========= =========================================================================
127.0.0.1 1.0.0.127.in-addr.arpa.
::1 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa.
========= =========================================================================
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.. autofunction:: dns.reversename.from_address
.. autofunction:: dns.reversename.to_address
Dnspython also provides helpers for converting E.164 numbers (i.e.
telephone numbers) into the names used for them in the DNS.
For example:
================ ==================================
Number DNS E.164 Name
================ ==================================
+1.650.555.1212 2.1.2.1.5.5.5.0.5.6.1.e164.arpa.
+44 20 7946 0123 3.2.1.0.6.4.9.7.0.2.4.4.e164.arpa.
================ ==================================
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.. autofunction:: dns.e164.from_e164
.. autofunction:: dns.e164.to_e164
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