Implementation of "is" and "yield"

[Pierre Quentel]

Hi,

The keywords "is" and "yield" are now supported : "is" is converted to the Javascript === (probably not correct in 100% of the cases : needs more testing) ; "yield" also needs testing, but it works in simple cases like :

def foo(x):
  for z in range(x):
    yield z
gen = foo(15)
for k in gen:
  print(k)

I also added the "else" part of "try / except / else"

With these changes, there only remains 2 unsupported Python keywords : "nonlocal" and "with" (I never use them in CPython so I'll have to learn what they do first...)

Among the features still uncovered, the next on my to-do list are generator expressions and decorators. Hopefully in a few weeks some of the scripts in the Python 3.3 standard distribution will run in Brython !

- Pierre

[Tad Vi]

Great.
I do not use "nonlocal" and "with" and will go read about them... :-)

Question: Will HTML5 History API be supported as external library or as built-in functions/objects?

[Francois Dion]

with is quite often use with open:

with open('filename','r') as f:
dosomething

once out of with scope, file object is closed.

In general, it is usable with an object that has a __enter__ and
__exit__ method.

Francois

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[Tad Vi]

Damn, I do use Python's "with"... but last 10 days I have spent doing mostly JavaScript. That was brain-fart caused by overexposure to JavaScript.
Well, hopefully with fast improving Brython I will not have to spend my days in JavaScript that much.

[Billy Earney]

Awesome!!  Thanks for all your hard work.. :)

- Pierre

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[Billy Earney]

+1 for external library.

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