system-config-printer-0.6.116.5-1  on fully patched EL4.4 x86 box:

/usr/share/printconf/util/cups_import.py  contains this code...

def which_spooler ():
    """Return the name of the active spooler."""
    signal.signal (signal.SIGCHLD, signal.SIG_DFL)
    f = os.popen ('LC_ALL=C /usr/sbin/alternatives --display print')
    for l in f.readlines ():
        if l.startswith (" link currently points to"):
            which = l.split ('.')[1].strip ()
            break

    f.close ()
    return which

the python split line assumes that the lpr binary contains a "." character.  Ex,
lpr.cups .  Our systems use a different version of LPR which doesn't contain
that character and thus the traceback:

# system-config-printer
Traceback (most recent call last):
  File "/usr/sbin/system-config-printer", line 9, in ?
    import queueTree
  File "/usr/share/printconf/util/queueTree.py", line 1236, in ?
    queueTree()
  File "/usr/share/printconf/util/queueTree.py", line 138, in __init__
    if cups_import.import_needed ():
  File "/usr/share/printconf/util/cups_import.py", line 200, in import_needed
    which = which_spooler ()
  File "/usr/share/printconf/util/cups_import.py", line 191, in which_spooler
    which = l.split ('.')[1].strip ()
IndexError: list index out of range

# /usr/sbin/alternatives --display print
<snip>
 link currently points to /usr/athena/bin/lpr
<snip>

This appears to have shown up with the 4.4 update.  Perhaps we could work around
this by renaming the lpr binary and use a "."?

# cd /usr/athena/bin/
# ln -s lpr lpr.isu
# ln -s /usr/athena/bin/lpr.isu /etc/alternatives/print

and that appears to allow system-config-printer to work again....

Thought I would file just to be sure...

thanks!
  daryl