e-Meeting in freenode #brython channel

[Olemis Lang]

Pierre is there a chance for us to meet in #freenode channel and chat for a while about Brython dev in general? If this is a good idea , what would be the best day + time before next Saturday ?

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Olemis - @olemislc

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[Olemis Lang]

On Wed, May 24, 2017 at 2:40 PM, Olemis Lang <ole...@gmail.com> wrote:

Pierre is there a chance for us to meet in #freenode channel and chat for a while about Brython dev in general? If this is a good idea , what would be the best day + time before next Saturday ?

Prior to that ... a few questions about the current state of Brython . In advance , please , excuse me if I'm asking .

- What does a Brython object look like nowadays ?
- What would be the initial strategy to implement an async core ? [1]_

The first thing I noticed while working with Batavia [2]_ is that their object model is quite straightforward , maps almost 1-to-1 to JS objects . The other thing I noticed is that a few operations are quite straightforward e.g. this would be the implementation of the handler implementing IMPORT_NAME bytecode (this is bound to the Batavia VM object) .

```

1875 VirtualMachine.prototype.byte_IMPORT_NAME = function(name) {

1876     var items = this.popn(2)

1877     this.push(

1878         builtins.__import__.apply(

1879             this,

1880             [

1881                 [name, this.frame.f_globals, this.frame.f_locals, items[1], items[0]],

1882                 null

1883             ]

1884         )

1885     )

1886 }

1887

```

Another example , this is how Python (byte)code is executed 

```

  173                 root_module = new types.Module(name, null, name)

  174                 leaf_module = root_module

  175                 modules.sys.modules[name] = root_module

  176

  177                 code = modules.marshal.load_pyc(this, payload)

  178                 // Convert code object to module

  179                 // args[1].__name__ = args[0]

  180                 frame = this.make_frame({

  181                     'code': code,

  182                     'f_globals': root_module,

  183                     'f_locals': root_module

  184                 })

  185                 this.run_frame(frame)

```

I'd like to have that in Brython core . It's quite readable , and I like it . As you can see , instantiating a module is quite easy and readable. They are using state-of-the-art JS "class inheritance" techniques .

.. [1] I have my own ideas but would like to know what comes out in the discussion and would not like to get biased answers , that's why I do not mention my thoughts on this subject ... ;)

.. [2] https://github.com/pybee/batavia

[Olemis Lang]

On Wed, May 24, 2017 at 3:17 PM, Olemis Lang <ole...@gmail.com> wrote:

In advance , please , excuse me if I'm asking .

In advance , please , excuse me if I'm asking ... trivial questions , it's been a long time since I coded something related to Brython and my daily job erased my Brython-ish super-powers .

[Pierre Quentel]

Olemis,

I can join the channel tomorrow (Friday). When it's 5pm here I think it's 8am in Portland, at what time can you join ?

[Kiko]

2017-05-25 8:52 GMT+02:00 Pierre Quentel <pierre....@gmail.com>:

Olemis,

I can join the channel tomorrow (Friday). When it's 5pm here I think it's 8am in Portland, at what time can you join ?

I'm travelling these days and too busy the last year so I'm a bit disconnected from brython development... Please, schedule whatever it is the best for you and I will try to join.

Thanks.

 

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[Pierre Quentel]

Le jeudi 25 mai 2017 00:17:58 UTC+2, Olemis Lang a écrit :

On Wed, May 24, 2017 at 2:40 PM, Olemis Lang <ole...@gmail.com> wrote:

Pierre is there a chance for us to meet in #freenode channel and chat for a while about Brython dev in general? If this is a good idea , what would be the best day + time before next Saturday ?

Prior to that ... a few questions about the current state of Brython . In advance , please , excuse me if I'm asking .

- What does a Brython object look like nowadays ?

I think you can find answers in the wiki page How Brython works, section "Implementation of Python objects"

- What would be the initial strategy to implement an async core ? [1]_

I don't know... I'm just getting into async / await, thanks to the talk at PyCon by Miguel Grinberg.

[Olemis Lang]

On Thu, May 25, 2017 at 12:02 AM, Pierre Quentel <pierre....@gmail.com> wrote:

- What does a Brython object look like nowadays ?

I think you can find answers in the wiki page How Brython works, section "Implementation of Python objects"

Thenks for the pointer  . I've seen a few things that maybe can be changed so as to make Brython objects (i.e. js representations of Python objects) more similar to *native* js objects.

 

- What would be the initial strategy to implement an async core ? [1]_

I don't know... I'm just getting into async / await, thanks to the talk at PyCon by Miguel Grinberg.

I'm not sure how far we'll go that way when it comes to implementing the Brython core . Python async / await is a high-level feature as compared to the underlying execution engine . I guess we'll have to dig into the JS code internals .

[Olemis Lang]

On Wed, May 24, 2017 at 11:52 PM, Pierre Quentel <pierre....@gmail.com> wrote:

I can join the channel tomorrow (Friday). When it's 5pm here I think it's 8am in Portland, at what time can you join ?

I guess 9:00 PST would be ok .