SystemError: unknown opcode

[Carsten Gaebler]

Hi there,

I just got an exception from a script that is regularly run via cron.
The script is supposed to choose a random signature file, which it
does perfectly well. Just every now an then I receive the following
error. I'd be glad if anyone could explain what's happening. It's
Python 2.2, the script is run every 20 seconds.

XXX lineno: 454, opcode: 0
Traceback (most recent call last):
  File "/home/cg/bin/sigrotate.py", line 5, in ?
    sigs = glob.glob("/home/cg/.sig[0-9]*")
  File "/usr/local/python-2.2/lib/python2.2/glob.py", line 37, in glob
    sublist = glob1(dirname, basename)
  File "/usr/local/python-2.2/lib/python2.2/glob.py", line 50, in
glob1
    return fnmatch.filter(names,pattern)
  File "/usr/local/python-2.2/lib/python2.2/fnmatch.py", line 47, in
filter
    _cache[pat] = re.compile(res)
  File "/usr/local/python-2.2/lib/python2.2/sre.py", line 178, in
compile
    return _compile(pattern, flags)
  File "/usr/local/python-2.2/lib/python2.2/sre.py", line 226, in
_compile
    p = sre_compile.compile(pattern, flags)
  File "/usr/local/python-2.2/lib/python2.2/sre_compile.py", line 430,
in compile
    p = sre_parse.parse(p, flags)
  File "/usr/local/python-2.2/lib/python2.2/sre_parse.py", line 623,
in parse
    p = _parse_sub(source, pattern, 0)
  File "/usr/local/python-2.2/lib/python2.2/sre_parse.py", line 318,
in _parse_sub
    if source.match("|"):
  File "/usr/local/python-2.2/lib/python2.2/sre_parse.py", line 454,
in _parse
    min, max = 0, MAXREPEAT
SystemError: unknown opcode

And this is the script:

[cg at cg cg]$ cat bin/sigrotate.py
#! /usr/bin/python -S

import glob, whrandom, os

sigs = glob.glob("/home/cg/.sig[0-9]*")
sig = whrandom.choice(sigs)
open("/home/cg/.sigtemp", "w").write(open(sig, "r").read())
os.rename("/home/cg/.sigtemp", "/home/cg/.signature")


Regards
Carsten.
-- 
'In iteger arithetric divsion is no the oposite of multiplication.'
                                   -- scenes from comp.lang.python