Changes in Brython version 2.1.4
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New features
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- improved performance of generators, operations on sets, list sorting
- int formatting
- add __index__ on int
- add hash for frozensets

Implementation
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- many code cleanings and refactoring : replace if/else and indexOf by switch
- add code coverage via blanket.js

Bug fixes
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- fixes to float inf/-inf/nan issues 
- issues with int base, int.from_bytes
- issue with float hash, float hex
- issue with os.urandom
- in "except E as exc", add exc to namespace
- iter() on range objects returns another object, not self
- fix bug in attribute "args" of BaseException

- issue #279 : inline comments in a multiline comprehension raises a syntax error
- issue #282 : int('') return NaN instead of throwing error (patch by Kiko Correoso)
- issue #288 : inheritance of built-in types "bytes" and "bytearray"
- issue #290 : randint fails to return a number in __random library, returns NaN instead
- issue #291 : rename *.gz to *.tar.gz in Downloads
- issue #292 : error when referring to absent python script 
- issue #294 : reverting a single element list with [::-1] results in empty list [] instead of the same list

Demos
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- add sudoku solver demo
- faster version of 3Dwalker demo

Standard distribution
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Documentation
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