[IronPython] IronPython source code

Jimmy Schementi jimmy at schementi.com
Sat Nov 20 22:31:20 CET 2010


On Sat, Nov 20, 2010 at 4:21 PM, Pablo Dalmazzo <pablodalma93 at hotmail.com>wrote:

>  is possible that syntax rule is shown as error because of the VS 2008
> support and not the language version? We arent using IronPython 1.x in any
> computer unless it's a mistake, Im not there now but I dont remember any
> asp.net sample folder which came with version 1.x
>

The VS2008 support doesn't understand the conditional expression because it
uses IronPython 1.1 to check syntax, regardless of what version of
IronPython you run your applications with.


>
> ------------------------------
> From: dinov at microsoft.com
> To: users at lists.ironpython.com
> Date: Sat, 20 Nov 2010 19:32:31 +0000
>
> Subject: Re: [IronPython] IronPython source code
>
>  Wow, you must still be using IronPython 1.1 or IronPython 1.0.  The
> conditional expression was added in Python 2.5 so it’s in IronPython 2.0
> (which maps to Python 2.5).  I’m guessing the VS 2008 support you’re using
> is IronPythonStudio which I believe is still at 1.0/1.1 as well.
>
>
>
> We did release the code for the ASP.Net integration (see Jimmy’s
> announcement here
> http://blog.jimmy.schementi.com/2010/07/aspnet-dynamic-language-support-is-open.html)
> but I don’t remember if we included / re-built it for the 2.7B1 release.
> The reason I bring this up is I think the best possible upgrade path if you
> want both ASP.NET + VS support would be to move to IronPython 2.7 and VS
> 2010.  If that’s not too big of a jump for you I think you’d find it’s a
> much better experience than 1.1 and the VS 2008 integration which is a
> little lacking in some aspects.
>
>
>
> But if the conditional expression was the one extra thing you wanted you
> could also consider back porting it to IronPython 1.1 – it shouldn’t be very
> difficult.  The parser side of things won’t be much different between 1.1
> and 2.7 but the code gen side will require some IL generation which will
> also give it more of a traditional compiler feel.  1.1 is also a little
> simpler in some aspects so it might be easier to get a feel of things there
> and then when you look at 2.x you can see how the DLR has been added in on
> top of that.
>
>
>
> *From:* users-bounces at lists.ironpython.com [mailto:
> users-bounces at lists.ironpython.com] *On Behalf Of *Pablo Dalmazzo
> *Sent:* Saturday, November 20, 2010 8:23 AM
> *To:* IronPython Mailing list
> *Subject:* Re: [IronPython] IronPython source code
>
>
>
> Thanks Dino for the info, Jimmy for the tip and Jeff for the Twitter
> answer.
>
>
>
> I'm interested in certain things but I need to read more to make any
> question understandable :) Also I would like to understand/understand better
> the reasons behind the important differences certain cool languages have
> among them, but that doesnt have to do with Python alone
>
>
>
> BTW, we arent working with the last version of IronPython, because we are
> working with the one we feel more secure for compatibility/integration
> issues with Visual Studio 2008 and asp.net, and I havent read all the
> sourcecode changes report yet, but it would seem IronPython in Visual Studio
> 2008 Professional doesnt take as valid sentences of this kind: (in fact
>
> they are marked as invalid by Visual Studio) "variable = value1 if
> condition is None else value2".
>
>
>
> Unless it's a change in the syntax from one Python version to another
> version? We arent aware of all the Python changes from a version to another.
> When we use some IronPython modules we get errors in lines like that so we
> translate them to the verbose version of the sentence for them to work. We
> move the modules from the IronPython installation to the App_script folder
>
>
>
> May be we are using IronPython modules from a version with another version
> of IronPython where that kind of syntax rule was invalid?
>
>
>
>
>
>
>
>
>  ------------------------------
>
> From: dinov at microsoft.com
> To: users at lists.ironpython.com
> Date: Fri, 19 Nov 2010 17:12:44 +0000
> Subject: Re: [IronPython] IronPython source code
>
> Yeah, there’s no good comprehensive docs.  There’s some stuff in the CHM
> but it’s more oriented towards people wanting to extend IronPython than work
> on it.
>
>
>
> If there’s something particular you’re interested in someone can probably
> chime in on the list.  IronPython it’s self is pretty abstracted away from
> generating code now (we generally just generate expression trees
> everywhere).  So if you’re interested purely in the compiler side of things
> you can look at the Tokenizer->Parser->AST transformations but then we’re
> basically done w/ code gen at that point.
>
>
>
> *From:* users-bounces at lists.ironpython.com [mailto:
> users-bounces at lists.ironpython.com] *On Behalf Of *Jimmy Schementi
> *Sent:* Friday, November 19, 2010 8:08 AM
> *To:* Discussion of IronPython
> *Subject:* Re: [IronPython] IronPython source code
>
>
>
> You'll have an easier time understanding Sympl, a sample programming
> language built on the DLR, which is at http://dlr.codeplex.com. The
> documentation for Sympl and the DLR itself is at
> http://dlr.codeplex.com/wikipage?title=Docs%20and%20specs&referringTitle=Documentation<http://dlr.codeplex.com/wikipage?title=Docs+and+specs&referringTitle=Documentation>.
> From there you can "upgrade" to IronPython, but then hopefully you'll feel
> comfortable with just the source code. There are some old docs at
> http://ironpython.codeplex.com/wikipage?title=More%20Information<http://ironpython.codeplex.com/wikipage?title=More+Information>,
> but really the source is your best bet.
>
>
> ~Jimmy
>
> On Fri, Nov 19, 2010 at 10:52 AM, Jeff Hardy <jdhardy at gmail.com> wrote:
>
> Hi Pablo,
> As far as I know there isn't any detailed documentation, but Dino
> would know for sure.
>
> - Jeff
>
>
> On Mon, Nov 15, 2010 at 2:59 PM, Pablo Dalmazzo
> <pablodalma93 at hotmail.com> wrote:
> > Hi,
> > I was taken a look at the IronPython sourcecode. Is there any aditional
> > resource/documentation/chart to help understand it? I've only coded in an
> > "educational" compiler, you know, those made to teach you programming and
> > even if it had the typical compiler stages it was very far from a real
> .NET
> > compiler
> > Greetings
> >
>
> > _______________________________________________
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> > Users at lists.ironpython.com
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> >
> >
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