Greetings:
Andreas and Kent helped me solve my problem. We are writing a keyword
driven framework for embedded SW testing. The framework supports scores
of keywords, built-in and user-defined. We are still writing the
framework, so none of the functions for manipulating the target device
has been written, although the keywords are defined. As a result, he
framework's output log is full of "keyword not found" errors, which mask
real errors in framework operation.
To get rid of these 'pseudo errors' I wanted a stub handler that would
output an information message, with the name of the function and its
arguments. Using the sys._getframe method and the inspect.getargvalues
methods, I was able to write a single routine that will handle any
function signature. Here is the result:
A sample keyword triggered function:
##########
import sys
from actioncommon import handlestub
def doaction_dbopen(ctrl, proc, schemafile, configfile,
dataset="default"):
'''A, Config, DB, Open, schemafile, configfile, dataset="default"
Open the testbench data base.
Where:
schemafile (str) - the xml schema file for the product to be
tested;
configfile (str) - the configuration file for the product to be
tested;
dataset (str) - optional configuration data set to activate.
defaults to "default"
Example:
A, Config, DB, Open, "master.xml", "test.tex", "current"
'''
# TODO: replace stub handler with action logic.
handlestub(ctrl, proc, sys._getframe())
return True
##########
The stub handler:
##########
from inspect import getargvalues
def handlestub(ctrl, proc, thestubframe):
"""Identifies actions that are defined but not yet implemented."""
themsg = "Execuiting %s (implementation pending) with arguments: " %
\
thestubframe.f_code.co_name
(theargnames, trash1, trash2,
thelocalsdict)=getargvalues(thestubframe)
# The first two arguments are internal to the application: do not
display.
if len(theargnames) <= 2:
themsg += "None"
else:
for theargname in theargnames[2:]:
themsg += "%s=%s " % (theargname,
thelocalsdict[theargname]) ctrl.log.logaction(ctrl.log.INFO, themsg)
##########
The resulting log output:
##########
INFO Execuiting doaction_dbopen (implementation pending) with
arguments: schemafile=USBIBM.XML configfile=USBIBM.TEX
dataset=usbimbstart
##########
Thanks to Andreas and Kent for their help
Regards,
Barry
[EMAIL PROTECTED]
541-302-1107
________________________
We who cut mere stones must always be envisioning cathedrals.
-Quarry worker's creed
> -----Original Message-----
> From: Kent Johnson [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, December 13, 2006 2:55 AM
> To: Carroll, Barry
> Cc: tutor@python.org
> Subject: Re: [Tutor] Accessing the name of a Function
>
> Carroll, Barry wrote:
> > Andreas:
> >
> > You're right, that is kind of messy and somewhat limited. In the
> > present case, however, it is the function's defined name that I
want, so
> > this would work okay.
> >
> > I'm guessing that there is a way to determine the number and names
of
> > the arguments to the function as well. I'll go look at the sys
module
> > and see what I can find.
>
> Look at the inspect module, specifically getargspec() and
getargvalues().
>
> Kent
>
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
