Can't print empty lepl.List objects.

[GoogleCodeExporter]

An empty list of lepl.List or a subclass cannot be printed (or converted to 
string):

>>> l = lepl.List()
>>> print l
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/exports/home/wagnerflo/.local/lib/python2.6/site-packages/LEPL-4.3.3-py2.6.egg/lepl/support/list.py", line 55, in __str__
    return sexpr_to_tree(self)
  File "/exports/home/wagnerflo/.local/lib/python2.6/site-packages/LEPL-4.3.3-py2.6.egg/lepl/support/list.py", line 165, in sexpr_to_tree
    return '\n'.join(fold(list_)('', ''))
  File "/exports/home/wagnerflo/.local/lib/python2.6/site-packages/LEPL-4.3.3-py2.6.egg/lepl/support/list.py", line 163, in <lambda>
    return lambda first, rest: join(list(fun(first, rest)))
  File "/exports/home/wagnerflo/.local/lib/python2.6/site-packages/LEPL-4.3.3-py2.6.egg/lepl/support/list.py", line 162, in fun
    yield force[-1](rest + ' `- ', rest + '    ')
IndexError: list index out of range

A patch is attached which seems to fix the issue.

Original issue reported on code.google.com by flor...@wagner-flo.net on 28 Nov 2010 at 2:29

Attachments:

• print-empty-list.patch

[GoogleCodeExporter]

Whoa.  That's awful.  Sorry - will try get a new release out today.  Andrew

Original comment by acooke....@gmail.com on 28 Nov 2010 at 2:37

• Changed state: Accepted

[GoogleCodeExporter]

This was fixed, right?

Original comment by acooke....@gmail.com on 8 Jan 2012 at 10:42

• Changed state: Fixed

[GoogleCodeExporter]

I think so. Haven't used lepl in a while...

Original comment by flor...@wagner-flo.net on 9 Jan 2012 at 8:01