[Zope] how to print error stack trace

[Jay, Dylan]

> -----Original Message-----
> From: Brian Hooper [mailto:brian@garage.co.jp]
> Sent: Thursday, September 09, 1999 11:05
> To: Jay, Dylan
> Cc: 'zope@zope.org'
> Subject: Re: [Zope] how to print error stack trace
> 
> 
> Just include
> 
> <dtml-var error_traceback>
> 
> in the body of the error mail (<!--#var error_traceback--> if you're
> using Zope 1).

Thanks alot. Also can anyone tell me why sometimes the standard_error_html
is used and sometimes an error page is generated with stack trace but it
didn't come from standard_error_html?