Python and Unicode
[Pages:37]Python and Unicode
Unicode Support in Python EuroPython Conference 2002
Charleroi, Belgium
Marc-Andr? Lemburg
Software GmbH Germany
(c) 2001 Software, Skills and Services GmbH, info@
European Python Meeting at Bordeaux 2001
Python & Unicode: Overview 1. Introduction to Unicode 2. Python`s Path to Unicode 3. Using Unicode in Python 4. The Future
(c) 2002 Software, Skills and Services GmbH, info@
Python & Unicode
EuroPython Confrence 2002
Python & Unicode: Part 1 1. Introduction to Unicode 2. Python`s Path to Unicode 3. Using Unicode in Python 4. The Future
(c) 2002 Software, Skills and Services GmbH, info@
Python & Unicode
EuroPython Confrence 2002
Introduction to Unicode: The Problem
Python & Unicode
? Storing scripts: human readable text data
? Localization (l10n) and Internationalization (i18n) of software and GUIs
? Basis for national language and script support
? Common ground for textual information exchange
(c) 2002 Software, Skills and Services GmbH, info@
EuroPython Confrence 2002
Python & Unicode
Introduction to Unicode: First Approximations
? Mappings of bytes to characters: Code Pages (CP)
? Problem: Attaching the encoding information to the data
No support in the OS for maintaining per data buffer encoding information Each application/protocol has to implement its own way of dealing with encodings
? Problem: Scripts with many characters
e.g. Asian scripts use shift information to address all characters using 8 bits
? Problem: Not available for ancient scripts
e.g. Old Italic
? Problem: Incompatible mappings for the same script
e.g. Latin-1 and Windows CP-152x
(c) 2002 Software, Skills and Services GmbH, info@
EuroPython Confrence 2002
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