Idna

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- Allows generation of IDNA and UTS 46 table data for different
versions of Unicode, by deriving properties directly from
Unicode data.
- Ability to generate RFC 5892/IANA-style table data
- Diagnostic output of IDNA-related Unicode properties and
derived calculations for a given codepoint
- Support for idna.__version__ to report version
- Support for idna.idnadata.__version__ and
idna.uts46data.__version__ to report Unicode version of
underlying IDNA and UTS 46 data respectively.

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- Fix bug with Katakana middle dot context-rule (Thanks, Greg
Shikhman.)

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- Restore IDNAError to be a subclass of UnicodeError, as some users of
this library are only looking for the latter to catch invalid strings.

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- Fix bugs relating to deriving IDNAError from UnicodeError.
- More memory footprint improvements (Thanks, Alex Gaynor)

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- Made some changes to the UTS 46 data that should allow Jython to get around
64kb Java class limits. (Thanks, John A. Booth and Marcin Płonka.)
- In Python 2.6, skip two tests that rely on data not present in that
Python version's unicodedata module.
- Use relative imports to help downstream users.

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- Memory consumption optimizations. The library should consume significantly
less memory through smarter data structures being used to represent
relevant Unicode properties. Many thanks to Shivaram Lingamneni for this
patch.
- Patches to make library work better with Python 2.6. The core library
currently works however the unit testing does not. (Thanks, Robert
Buchholz)
- Better affix all Unicode codepoint properties to a specific version.