A Python validator for Internet hostnames

Not all valid DNS names are valid hostnames, although all valid hostnames are valid DNS names.

Along with a hostname.Hostname class, this hostname package provides hostname.is_hostname() boolean function, which performs syntactic validation of candidate hostname.

This validation only on the form of the candidate hostname. It does not check whether the name exists in the DNS system.

Contents:

• Overview
  • Motivation
  • Valid hostnames
  • Examples
• Using hostname
  • Common signature
  • The function
  • Hostname class
  • Flags
• Exceptions
  • Overview and examples
  • All HostnameException classes
• RFCs
  • Nomenclature
  • RFC952: Hosts, etc
  • Length restrictions
  • Digits first
  • Internationalization
• Underscores
  • Parser mismatch is bad
  • History

Indices and tables

• Index

• Module Index

• Search Page