[IronPython] How do you detect operating systems from within IronPython?

2011-02-21 Thread Vernon Cole 
I received a reminder today on a module I modified:
v v v
 dsblank http://www.codeplex.com/site/users/view/dsblank wrote Today at
8:01 AM
 Remember that IronPython runs on many different operating systems. It isn't
clear from the patch if this works on Mac and Linux under Mono.
^ ^ ^
Which brings up a really good point

How do I tell what operating system IronPython is running on?

The original module (webbrowser.py) has lots of operating systems specific
code, all separated by:
if os.platform[:3] == 'win'
which I have modified to:
if os.platform[:3] in ['win','cli']

but that assumes that mono emulates Windows to a high degree, which thing I
doubt.

The best guess I can make as to more correct code would be:

if os.platform[:3] == 'win' or (os.platform[:3] == 'cli' and os.linesep ==
'\r\n')

Yeeach!

How should I really be doing it?
--
Vernon Cole
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Re: [IronPython] How do you detect operating systems from within IronPython?

2011-02-21 Thread Jeff Hardy 
On Mon, Feb 21, 2011 at 11:05 AM, Vernon Cole vernondc...@gmail.com wrote:
 How should I really be doing it?

os.name usually has the actual underlying OS, but depending on what
you need to do it may be better to have a block that is just for 'cli'
that calls into a .NET API, and let .NET/Mono smooth over the platform
differences.

- Jeff
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Re: [IronPython] How do you detect operating systems from within IronPython?

2011-02-21 Thread Vernon Cole 
This is probably almost a confession on this group, but I don't USE the .NET
API very often.
My reason for mucking with IronPython is left handed.  I have this great
module which works on CPython 2.n and CPyton 3.n and I want it to work on
IronPython, too.  I feel that the .NET API is almost as ungodly as the Java
API, and not quite as well documented. That's why I am working on
cross-platform tools, so the application programmer does not need to learn
the gnarly details of the API's. So I learn just barely enough .NET to make
my module work. The app programmer calls webbrowser.open('http://digvil.info')
and the magic happens. Then I go searching for another tool that application
programmers need. I don't really have a life.

So I wrote (okay, modified) a tool which calls into the .NET API and let
.NET/Mono smooth out the difference.
Next morning, I get a note from a Mono user that I may have screwed up.  So
now I get to spend several more days thrashing around in an IDE that I don't
know and will probably never use again so that I can build a current copy of
Mono/IronPython to test against.  [puff -- puff -- whew!  Thanks, I feel
better now.]

Thanks for the hint about os.name.  I was hoping for something a little more
definitive than 'nt', but it will suffice for the time being. What I was
originally looking for was an answer to the question does this operating
system use/require UAC elevation.   Is there a .NET call which will answer
that question? Mono people -- can you tell me whether I need to use 'sudo'
in Ubuntu?
--
Vernon

On Mon, Feb 21, 2011 at 11:19 AM, Jeff Hardy jdha...@gmail.com wrote:

 On Mon, Feb 21, 2011 at 11:05 AM, Vernon Cole vernondc...@gmail.com
 wrote:
  How should I really be doing it?

 os.name usually has the actual underlying OS, but depending on what
 you need to do it may be better to have a block that is just for 'cli'
 that calls into a .NET API, and let .NET/Mono smooth over the platform
 differences.

 - Jeff

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