How can I debug silent failure - print no output

[Jason Friedman]

>
> def GetArgs():
>     '''parse XML from command line'''
>     parser = argparse.ArgumentParser()
>
>     parser.add_argument("path", nargs="+")
>     parser.add_argument('-e', '--extension', default='',
>                         help='File extension to filter by.')
>     args = parser.parse_args()
>
>     files = set()
>     name_pattern = "*" + args.extension
>     for path in args.path:
>         files.update(glob.glob(os.path.join(path, name_pattern)))
>     return files
>
>
>
>     # Now walk the tree and insert data.
>     for filename in sorted(GetArgs()):
>         for meeting in pq(filename=filename):
>             print(filename)
>             print(meeting)
>             meetdata = [meeting.get(attr) for attr in meetattrs]
>             cur.execute("insert into meetings valueme in GetArgs():s (" +
>                         ",".join(["%s"]*len(meetattrs)) + ")", meetdata)
>             for race in meeting.findall("race"):
>                 race.set("meeting_id", meeting.get("id"))
>                 racedata = [race.get(attr) for attr in raceattrs]
>                 cur.execute("insert into races values (" +
>                             ",".join(["%s"]*len(raceattrs)) + ")",
> racedata)
>                 for horse in race.findall("nomination"):
>                     horse.set("race_id", race.get("id"))
>                     horsedata = [horse.get(attr) for attr in horseattrs]
>                     cur.execute("insert into horses values (" +
>                                 ",".join(["%s"]*len(horseattrs)) + ")",
> horsedata)
>
> If your actual indentation matches what I see in your post, is your

for filename in sorted(GetArgs())

line within the definition of GetArgs?

If yes, it will not be executed.