RE: [Zope] Help Debugging External Methods

2000-10-23 Thread Dieter Maurer

 the Python debugger "pdb"


It's a Python module used to debug Python programs.
It can set breakpoints, single step and print expressions.
It is activated automatically, when you start
"ZPublisher/Test.py" with the "-D" option.

Usually, I do not use it this way, however, as
it takes too long, before I reach the interesting
point. Instead, I use:

import pdb; pdb.set_trace()

at the point in Python code, where I want to get control.
Then I use "Test.py" without "-D".


Dieter


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Re: [Zope] Help Debugging External Methods

2000-10-18 Thread Kapil Thangavelu

[EMAIL PROTECTED] wrote:

 I'm not sure what you are referring to with "...the Python debugger
 "pdb"...".  I've never used it.


The Debugger is your friend

http://www.zope.org/Members/michel/HowTos/TheDebuggerIsYourFriend

 Robert J. Roberts
 LMSI-SDI
 509.376.6343
 [EMAIL PROTECTED]
 
 -Original Message-
 From: Dieter Maurer [mailto:[EMAIL PROTECTED]]
 Sent: Saturday, October 14, 2000 1:51 PM
 To: [EMAIL PROTECTED]
 Cc: [EMAIL PROTECTED]
 Subject: Re: [Zope] Help Debugging External Methods
 
 [EMAIL PROTECTED] writes:
   What are my options for debugging External Methods in Zope running on
   Windows NT?
 I work under Unix. Maybe my technics are not applicable for NT.
 
 Usually, I use "print" statements for debugging purposes.
 Under Unix, I can redirect "stdout" to a file and
 view the output (be sure to flush stdout after "print").
 
 You can also use "zLog" (may be spelled differently!).
 This writes log entries into the log file.
 The advantages: will work under Windows, contains a timestamp.
 
 If the external method does not need too many Zope infrastructure,
 I test it outside of Zope and integrate only, when it works
 properly.
 
 When everything else does not work, I use "Test.py" and
 the Python debugger "pdb".
 
 Dieter
 
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Re: [Zope] Help Debugging External Methods

2000-10-18 Thread Fred Yankowski

On Tue, Oct 17, 2000 at 09:05:29PM -0700, Kapil Thangavelu wrote:
 The Debugger is your friend
 http://www.zope.org/Members/michel/HowTos/TheDebuggerIsYourFriend

That's a useful page -- thanks for the link.

It's interesting that the example fooMethod() function has a major
flaw, contrary to what the HowTo says: "There's actually nothing wrong
with this method to debug".

I would have replied directly to the author, 'michel', but his email
address does not appear on that HowTo page or any of the pages that I
scanned under http://www.zope.org/Members/michel.

-- 
Fred Yankowski   [EMAIL PROTECTED]  tel: +1.630.879.1312
Principal Consultant www.OntoSys.com   fax: +1.630.879.1370
OntoSys, Inc 38W242 Deerpath Rd, Batavia, IL 60510, USA

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RE: [Zope] Help Debugging External Methods

2000-10-16 Thread Robert_J_Roberts

I do pretty much the same things myself.  I assign sys.stderr = sys.stdout,
then I create my own log file object from a module I wrote a few years ago,
and then assign something like sys.stderr = self.logObj.

That works well for any errors that occur after those assignments have
occurred but doesn't do much for anything that happens earlier.

I also run the python code outside of Zope to get it all working.

It's just a pain when I have to make some minor change in the Zope to
External Method logic and it breaks.  That's where I start to lose it some
in the debugging.

Using something like:

import sys, traceback, string
try:
trysomething()
except:
type, val, tb = sys.exc_info()

sys.stderr.write(string.join(traceback.format_exception(type, val, tb), ''))
del type, val, tb

...helps, but even with that I seem to get errors that I just can't seem to
catch and report properly.

I'm not sure what you are referring to with "...the Python debugger
"pdb"...".  I've never used it.

Thanks for your help,

Robert J. Roberts
LMSI-SDI
509.376.6343
[EMAIL PROTECTED]



-Original Message-
From: Dieter Maurer [mailto:[EMAIL PROTECTED]]
Sent: Saturday, October 14, 2000 1:51 PM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: [Zope] Help Debugging External Methods


[EMAIL PROTECTED] writes:
  What are my options for debugging External Methods in Zope running on
  Windows NT?
I work under Unix. Maybe my technics are not applicable for NT.

Usually, I use "print" statements for debugging purposes.
Under Unix, I can redirect "stdout" to a file and
view the output (be sure to flush stdout after "print").

You can also use "zLog" (may be spelled differently!).
This writes log entries into the log file.
The advantages: will work under Windows, contains a timestamp.

If the external method does not need too many Zope infrastructure,
I test it outside of Zope and integrate only, when it works
properly.

When everything else does not work, I use "Test.py" and
the Python debugger "pdb".


Dieter

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Re: [Zope] Help Debugging External Methods

2000-10-14 Thread Dieter Maurer

[EMAIL PROTECTED] writes:
  What are my options for debugging External Methods in Zope running on
  Windows NT?
I work under Unix. Maybe my technics are not applicable for NT.

Usually, I use "print" statements for debugging purposes.
Under Unix, I can redirect "stdout" to a file and
view the output (be sure to flush stdout after "print").

You can also use "zLog" (may be spelled differently!).
This writes log entries into the log file.
The advantages: will work under Windows, contains a timestamp.

If the external method does not need too many Zope infrastructure,
I test it outside of Zope and integrate only, when it works
properly.

When everything else does not work, I use "Test.py" and
the Python debugger "pdb".


Dieter

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[Zope] Help Debugging External Methods

2000-10-13 Thread Robert_J_Roberts

What are my options for debugging External Methods in Zope running on
Windows NT?

Is there ANY way to get the external method to run in a DOS window that I
can watch?

What little tricks/techniques have others use to make debugging external
methods easier/possible?

Thanks,

Robert J. Roberts
LMSI-SDI
509.376.6343
[EMAIL PROTECTED]



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