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Other syntax ideas and feature ideas for Python3.0 .

Contents

  1. declaring parameter and variable types
  2. script to translate python source from one version to one other
  3. Different regular expressions modules for bytes and unicode text
  4. New binary operator symbols d e `
  5. Optional Static Typing / Adaptation
  6. Lambda / Anonymous Methods / Closures
  7. Print as builtin instead of a statement
  8. ".." Sequences, Custom Infix Operators
  9. Improved default value logic for Dictionaries
  10. Better boolean logic
  11. Disallow calling class methods from instances
  12. Simplify the syntax for raising exceptions
  13. Fix implementation of in-place operators
  14. Remove the distinction between data and non-data decriptors
  15. Reconsider the inclusion of __slots__ or re-evaluate its implementation
  16. Extra operators for strings and lists
  17. Move rarely-used builtins to the library
  18. Don't remove callable()
  19. Make API of set, list, dict more consistent
  20. Make copy and deepcopy built-ins, replace copy methods by __copy__
  21. Don't remove cmp() and __cmp__
  22. Builtin Literal for sets
  23. Make extended function call syntax more iterator friendly
  24. Require __iter__() for DictMixin instead of keys()
  25. Raise the level of os module functions
  26. Parameterize functions that hardcode stdout or stderr
  27. Module interface
  28. Stronger Distinction between Tuples & Lists
  29. Unifying generators
  30. Replace Integer Masks with Sets
  31. Replace abs() with | |
  32. Require Parens for Tuple Definition
  33. Remove [<listcomp>] syntax in favor of list(<genexp>) syntax
  34. Move builtins to be methods on the types they apply to:
  35. Default to assign class object rather than class reference
  36. Unicode identifier
  37. Remove support for complex numbers
  38. Reserve some keywords for futur extensions
  39. Simplify the filename search when importing
  40. Increment operator

declaring parameter and variable types

It may be easier, reduce bugs, offers intelli-sense like in Microsoft Visual Studio. All of that could reduce development-time.

script to translate python source from one version to one other

does any script (will) exists, to translate code, form python 2.3 to python 2.4 or from python 2.3 to 2.4?

Different regular expressions modules for bytes and unicode text