Description of problem:
Had multiple session (tmux,vim) open. No idea what caused it.

Version-Release number of selected component:
powerline-0.0.1-6.20140226git70a94e.fc20

Additional info:
reporter:       libreport-2.2.0
cmdline:        /usr/bin/python /usr/bin/powerline tmux right -R pane_id=
executable:     /usr/bin/powerline
kernel:         3.13.6-200.fc20.x86_64
runlevel:       N 5
type:           Python
uid:            1000

Truncated backtrace:
__init__.py:48:keyvaluesplit:IndexError: string index out of range

Traceback (most recent call last):
  File "/usr/bin/powerline", line 15, in <module>
    finish_args(args)
  File "/usr/lib/python2.7/site-packages/powerline/shell.py", line 76, in finish_args
    args.renderer_arg = mergeargs((parsedotval(v) for v in args.renderer_arg))
  File "/usr/lib/python2.7/site-packages/powerline/shell.py", line 11, in mergeargs
    r = dict([next(argvalue)])
  File "/usr/lib/python2.7/site-packages/powerline/shell.py", line 76, in <genexpr>
    args.renderer_arg = mergeargs((parsedotval(v) for v in args.renderer_arg))
  File "/usr/lib/python2.7/site-packages/powerline/lib/__init__.py", line 59, in parsedotval
    o, val = keyvaluesplit(s)
  File "/usr/lib/python2.7/site-packages/powerline/lib/__init__.py", line 48, in keyvaluesplit
    if rest[0] in '"{[0193456789' or rest in ('null', 'true', 'false'):
IndexError: string index out of range

Local variables in innermost frame:
idx: 7
s: 'pane_id='
o: 'pane_id'
rest: ''