Python Debugger

Re: Python Debugger

On 18 Aug 2003 12:34:09 -0700, [email protected] (Lothar Scholz)
wrote:[color=blue]
> Is there any python debugger that can
>
> 1) be used remotely[/color]

What do you mean by remotely? Debug a program running on a server
from a remote PC? Or telnet to the server and display the debug
session on the PC?

If the latter then the standard pdb module works just fine.
[color=blue]
> 2) can handle multiple threads[/color]

Never tried that one, although pdb might work...

Alan G.
Author of the Learn to Program website

Re: Python Debugger

[email protected] (Lothar Scholz) writes:
[color=blue]
> Is there any python debugger that can
>
> 1) be used remotely
> 2) can handle multiple threads
>
> I checked Eric, IDLE and Wing-IDE. None of them can do this.
> Any other recommendations ?[/color]

Hapdebugger claims all this (but I've never really tried it).



Thomas

Re: Python Debugger

alan.gauld@btin ternet.com (Alan Gauld) wrote in message news:<3f412cf3. 351547428@news. blueyonder.co.u k>...[color=blue]
> On 18 Aug 2003 12:34:09 -0700, [email protected] (Lothar Scholz)
> wrote:[color=green]
> > Is there any python debugger that can
> >
> > 1) be used remotely[/color]
>
> What do you mean by remotely? Debug a program running on a server
> from a remote PC?[/color]

Yes this is what i mean
[color=blue][color=green]
> > 2) can handle multiple threads[/color]
>
> Never tried that one, although pdb might work...[/color]

No it does not.

Re: Python Debugger

[email protected] (Lothar Scholz) writes on 19 Aug 2003 13:20:12 -0700:[color=blue]
> alan.gauld@btin ternet.com (Alan Gauld) wrote in message news:<3f412cf3. 351547428@news. blueyonder.co.u k>...[color=green]
> > On 18 Aug 2003 12:34:09 -0700, [email protected] (Lothar Scholz)
> > wrote:[color=darkred]
> > > Is there any python debugger that can
> > >
> > > 1) be used remotely[/color]
> >
> > What do you mean by remotely? Debug a program running on a server
> > from a remote PC?[/color]
>
> Yes this is what i mean[/color]

For this, we use WingIDE, a commercial IDE for Python.
[color=blue][color=green][color=darkred]
> > > 2) can handle multiple threads[/color][/color][/color]

When you mean a debugger that can set breakpoints in any thread,
analyse the state of any thread etc, then this is unlikely.

Python maintains the debugging hook in a thread specific data structure.
The available API functions can only access the debugging hook
in the own thread but not in a foreign thread.

This implies that unless the start of a thread is customized
(such that the debugging hook is immediately set on thread start)
it is very difficult to debug a foreign thread (without
a specialized C extension using internal implementation details of
Pythons thread implementation) .

Dieter

Re: Python Debugger


David> There was some talk about enhancing this in the 2.3 timeframe,
David> but I don't think it made it in.

I thought I saw one or two checkins by Jeremy Hylton in this regard. I
don't recall if it was before or after the 2.3 release, but I'm pretty sure
there's more in there now (in CVS at least) than there was in 2.2.

Skip

Re: Python Debugger

Lothar Scholz wrote:[color=blue]
> alan.gauld@btin ternet.com (Alan Gauld) wrote in message
> news:<3f412cf3. 351547428@news. blueyonder.co.u k>...[color=green]
>> On 18 Aug 2003 12:34:09 -0700, [email protected] (Lothar Scholz)
>> wrote:[color=darkred]
>>> Is there any python debugger that can
>>> 1) be used remotely[/color]
>>
>> What do you mean by remotely? Debug a program running on a server
>> from a remote PC?[/color]
>
> Yes this is what i mean[/color]

Successfully done that with WingIDE (server on Solaris, debug from PC)

Debugging multi-thread python apps is being discussed in another topic.

Mike

Re: Python Debugger

Alan Gauld <alan.gauld@bti nternet.com> wrote:[color=blue]
> Or telnet to the server and display the debug session on the PC?[/color]

Don't use telnet. man ssh ; man sshd

--
Heikki Orsila There has yet to be any innovation, new
heikki.orsila@e e.tut.fi features or new capabilities out of the
http://ee.tut.fi/~heikki Linux platform. - Steve Ballmer of Microsoft

Re: Python Debugger

Alan Gauld <alan.gauld@bti nternet.com> wrote:[color=blue]
> Or telnet to the server and display the debug session on the PC?[/color]

Don't use telnet. man ssh ; man sshd

--
Heikki Orsila There has yet to be any innovation, new
heikki.orsila@e e.tut.fi features or new capabilities out of the
http://ee.tut.fi/~heikki Linux platform. - Steve Ballmer of Microsoft