[IronPython] Standard Python Debugging not supported

[Jeff Griffiths]

That's a valid design point; I didn't implement the Python dbgp client 
but I imagine there was a reason for it. As it happens, _getframe is the 
only single-underscore method in sys, but it also happens to be a pretty 
useful one if you are implementing a debugger, with no obvious wrapper 
in the 'public' namespace in that module. So I guess pragmatism wins there?

cheers, JeffG

Nathan R. Ernst wrote:
> I don't mean to flame, but Python protocol dictates that methods/members
> preceded by "_" are generally not supposed to be referred to.  I guess you
> could kind of consider them 'protected', whilst members preceded by a
> double-underscore are considered 'private' (despite being accessible if you
> de-mangle the names manually).
> 
> Perhaps the modules relying upon behavior supplied by these modules should
> have defects assigned against them for using these methods, as well?  If its
> generally accepted that a Python implementation should provide methods
> prefixed by "_" on built-ins, maybe they ought to be moved towards more
> prominent, public names?
> 
> Just some random thoughts on the topic...
> 
> -Nathan  
> 
> -----Original Message-----
> From: users-bounces at lists.ironpython.com
> [mailto:users-bounces at lists.ironpython.com] On Behalf Of Jeff Griffiths
> Sent: Thursday, October 05, 2006 12:34 PM
> To: Discussion of IronPython
> Subject: Re: [IronPython] Standard Python Debugging not supported
> 
> Dino Viehland wrote:
>> Sys._getframe() is likely significantly harder to implement.  I'd be
>> a little bit surprised if we get this into 1.1 but it'd be nice to
>> get at some point in the future.  The hard part of this probably
>> isn't supporting sys._getframe() but actually supporting
>> sys._getframe(depth).
> 
>> Do you know if the parameterless version will unblock you, or do you
>> need the full blown functionality?
> 
> Komodo's debugger only makes calls like:
> 
> sys._getframe().f_back
> 
> We don't seem to pass arguments in, so I expect sys._getframe() without 
> parameters might work.
> 
> JeffG
> 
> ps for the curious, the debugger implementation we use is FOSS, and 
> available here:
> 
> http://aspn.activestate.com/ASPN/Downloads/Komodo/RemoteDebugging
> 
> The DBGP protocol it is based on is doc'd here:
> 
> http://www.xdebug.org/docs-dbgp.php
> 
> 
> 
> 
> 
> 
> 
> _______________________________________________
> users mailing list
> users at lists.ironpython.com
> http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
> 
> _______________________________________________
> users mailing list
> users at lists.ironpython.com
> http://lists.ironpython.com/listinfo.cgi/users-ironpython.com