Changes in Brython version 2.1-20140412-152157
==============================================

Brython 2.1.0 is a backwards-compatible version


New features
============
- the main change in this version is a major improvement in the implementation of generators. Brython now supports all the features of Python generators, including the methods send, throw, close, and the syntax "yield from"
- much improved support of str.format()
- improvement to regular expression modules
- remove all the attributes previously set to native Javascript object prototypes, such as String.prototype.__class__
- more efficient version of class StringIO
- add 'base' as second argument of built-in function int()
- add methods maketrans and translate to bytes
- add classes DOMNode and DOMEvent and object "console" to module browser
- improvements to import (start with stdlib, then current directory)
- add on option "ipy_id" to the brython() function to run scripts on demand
- add HTMLTestRunner for better looking unittests
- add keyword "file" to function "print"

Bug fixes
=========
- JSObject : 
. if an attribute of a JSObject is a function, convert the Python argument into equivalent Javascript objects
. if the argument is a function, return it unchanged
. if the attribute addEventListener of an object exists, translate "bind" to this attribute
- issues in module math.js ; in ternary operator
- in "with X as Y" inside a function, add Y to function local vars
- bug when a line ends with a comma in an implicit tuple ("del a, ") 
- bug with "raise exc" if exc is an instance, not a class
- bug when assigning exec(src) to an attribute or subscription 
- bug with "a, = X" and "x = 1,"  ; "def foo(a,)" or "def foo(a=1,)" failed 
- bug in string formatting with formats %d and %f
- bug when running some modules with debug mode not set
- bug with augmented assignment in class body
- bug with reporting a LocalUnboundError
- many bugs in documentation pages

- issue 146 : method clear() of DOMNode instances
- issue 182 : attribute id of DOMNode instances
- issue 210 : bug in attribute resolution
- issue 212 : bug in function super()
- issue 213 : handle argument -0 differently than 0
- issue 214 : wrong operator precedence in ternary operator
- issue 216 : bug with bytes and with boolean __str__ method
- issue 219 : bug with unary operator
- issue 220 : format method of strings only accepts two parameters
- issue 222 : attribute __ne__ of class objects
- issue 231 : absolute path of brython.js
- issue 233 : JSObject not working as expected
- issue 235 : "functools.reduce" is broken
- issue 237 : "for i in -1, 0, 1" raises SyntaxError 
- issue 236 : assignment to a "starred" target (eg a,*b = [1, 2, 3])
- issue 238 : operator.itemgetter returns incorrect result 
- issue 239 : empty string in empty string $
- issue 240 : dict.fromkeys is undefined 

Demos
=====
- AZERTY russian keyboard
- test battery management (by Nicolas Pinault)

Standard distribution
=====================
- add modules from the standard CPython distribution : pwd, pydoc, unitest/result; xml, urllib.parse
- upgrade modules to Python version 3.3.3
- add support of site-packages for 3rd party modules
- remove pydom and slideshow from Brython distribution (both are published as separate projects)

Documentation
=============
- update of the Portuguese translation by Yuri Texeira, and Spanish by Kiko Corresoso
- add documentation on developing webapps for Firefox OS
- add a FAQ page