Description of problem:
Ejecutando yum-extender (yumex-3.0.14-1.fc20) para actualizar Fedora 20, con el correspondiente paquete de actualizacion justamente de yum extender

misc.py:1018:write:IOError: [Errno 5] Error de entrada/salida

Version-Release number of selected component:
yumex-3.0.14-1.fc20

Additional info:
reporter:       libreport-2.2.2
cmdline:        /usr/bin/python -E /usr/share/yumex/yum_childtask.py 2 True False /etc/yum.conf fedora;rpmfusion-free-updates;adobe-linux-x86_64;rpmfusion-nonfree-updates;rpmfusion-free;updates;google-chrome;rpmfusion-nonfree
dso_list:       yum-3.4.3-137.fc20.noarch
executable:     /usr/share/yumex/yum_childtask.py
kernel:         3.14.5-200.fc20.x86_64
runlevel:       N 5
type:           Python
uid:            0

Truncated backtrace:
misc.py:1018:write:IOError: [Errno 5] Error de entrada/salida

Traceback (most recent call last):
  File "/usr/share/yumex/yum_childtask.py", line 64, in <module>
    my.dispatcher()
  File "/usr/lib/python2.7/site-packages/yumexbackend/yum_server.py", line 1520, in dispatcher
    print errmsg
  File "/usr/lib/python2.7/site-packages/yum/misc.py", line 1018, in write
    self.stream.write(s)
IOError: [Errno 5] Error de entrada/salida

Local variables in innermost frame:
s: 'Traceback (most recent call last):\n  File "/usr/lib/python2.7/site-packages/yumexbackend/yum_server.py", line 1499, in dispatcher\n    line = sys.stdin.readline().strip(\'\\n\')\nIOError: [Errno 5] Error de entrada/salida\n'
self: <open file '<stdout>', mode 'w' at 0x7fb391cf5150>