Description of problem:


Version-Release number of selected component (if applicable):
First, I find a package and select it. Then, when I try to find another package,
a exception occurs:

Component: pirut
Summary: TB5e195ffa pirut:172:_searchClicked:AttributeError: 'NoneType' object
has no attribute 'strip'

Traceback (most recent call last):
  File "/usr/sbin/pirut", line 172, in _searchClicked
    t = entry.get_text().strip()
AttributeError: 'NoneType' object has no attribute 'strip'

Local variables in innermost frame:
widget: <gtk.Entry object at 0x906a4dc (GtkEntry at 0xa3cb588)>
self: <__main__.PackageManager object at 0x8b312ac>
stop: <gtk.Button object at 0x8f16dec (uninitialized at 0x0)>
search: <gtk.Button object at 0x8f16d9c (uninitialized at 0x0)>
entry: <gtk.Entry object at 0x8f16e14 (uninitialized at 0x0)>
.2: (<gtk.Entry object at 0x8f16e14 (uninitialized at 0x0)>, <PirutPackageList
object at 0x8d134b4 (pirut+PackageList+PirutPackageList at 0xa6da950)>,
<gtk.Button object at 0x8f16d9c (uninitialized at 0x0)>, <gtk.Button object at
0x8f16dec (uninitialized at 0x0)>)
plist: <PirutPackageList object at 0x8d134b4 (pirut+PackageList+PirutPackageList
at 0xa6da950)>

It seems this exception always occurs when try to search another one or two
packages.

How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info: