On Thu, Aug 8, 2013 at 10:33 PM, Sarvi Shanmugham <sarvil...@gmail.com>wrote:
> For a couple of things
> 1. It would help to understand the performance difference between doing
> things in straight javascript and python-translated to java script
>
Relatively speaking pyjs will always be significantly slower than straight
JavaScript.
Practically speaking this is probably irrelevant unless you have complex
use cases in which case you probably have resources to optimize Pyjs where
it matters for you.
2. Also for things like the performance difference straight javascript
> DoJo and pyjs GWT, at creating different widgets
>
The actual DOM manipulation is going to be slower than whatever overhead
you have with pyjs.
> For a couple of reasons
> 1. How does one ever track how fixes to the pyjs compiler is affecting
> performance. pypy can track it because of speed.pypy.org
>
You can time the unit tests before and after the fix is applied.
> 2. How does one ever track how the pyjs widget set is performing
> compared to the rest of the world.
>
One doesn't. Practically speaking Pyjs is the only real option for Python
client side web development.
If you need to use Python than you are stuck with pyjs.
If you don't need to use Python than don't use pyjs.
3. How does some one help someone looking for a framework make the
> decision on pyjs Vs all the other choices out there
>
Unless someone is tied to Python for some reason, I would not recommend
Pyjs.
> I see tonnes of other attempts at this, ranging from brython, to skulpt,
> to coffeescript.
> Makes me wonder why there is so diversions from pyjs considering it is the
> oldest and most fully featured.
> And why more people haven't coalesced behind pyjs.
>
I'm not aware of any large projects using Brython or Skulpt. From that
perspective you can say that Pyjs is the framework people have coalesced
behind.
- lex
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