Update the wicd-curses client to work with urwid-1.3.  Based on a patch from:
http://technik.blogbasis.net/wicd-curses-fix-fuer-attributeerror-screen-object-no-attribute-get_input_nonblocking-04-12-2014

--- wicd-1.7.3/curses/wicd-curses.py.orig	2014-12-21 14:40:46.000000000 -0500
+++ wicd-1.7.3/curses/wicd-curses.py	2015-02-05 23:41:17.530901204 -0500
@@ -1153,9 +1153,10 @@
         if not ui._started:
             return False
 
-        input_data = ui.get_input_nonblocking()
+        ui.set_input_timeouts(max_wait=0)
+        input_data = ui.get_input()
         # Resolve any "alarms" in the waiting
-        self.handle_keys(input_data[1])
+        self.handle_keys(input_data)
 
         # Update the screen
         canvas = self.frame.render((self.size), True)
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<tr><td><span title='2017-06-15 02:47:45 -0400'>2017-06-15</span></td><td><a href='/guix/commit/gnu/packages/selinux.scm?id=9ffc1f0e95743171370e3999bd41eba9ebaada33'>gnu: libselinux: Propagate libsepol and pcre.</a><span class='msg-avail'>...</span></td><td>Kei Kebreau</td></tr>
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<tr><td><span title='2017-04-22 00:36:43 +0200'>2017-04-22</span></td><td><a href='/guix/commit/gnu/packages/selinux.scm?id=41da8dbe12c29166a6720596d08dd5fe4f129035'>gnu: Add python-setools.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2017-04-22 00:36:43 +0200'>2017-04-22</span></td><td><a href='/guix/commit/gnu/packages/selinux.scm?id=d7e2d273e111796a4c31a6d9974eec494add138f'>gnu: Add python-sepolgen.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2017-04-22 00:36:43 +0200'>2017-04-22</span></td><td><a href='/guix/commit/gnu/packages/selinux.scm?id=c837027d3855b39b3dd6d326df0154b3e185f21b'>gnu: Add secilc.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2017-04-22 00:36:42 +0200'>2017-04-22</span></td><td><a href='/guix/commit/gnu/packages/selinux.scm?id=32be66011a888f7c58c0218ce3ba0876ab728063'>gnu: Add libsemanage.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2017-04-22 00:36:42 +0200'>2017-04-22</span></td><td><a href='/guix/commit/gnu/packages/selinux.scm?id=4724d7297f0a114ac36b9f45ba9c9ee499146a34'>gnu: Add libselinux.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2017-04-22 00:36:42 +0200'>2017-04-22</span></td><td><a href='/guix/commit/gnu/packages/selinux.scm?id=66af08fb5a7fb3856cdb8e8955985a9d17ac5b2b'>gnu: Add checkpolicy.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2017-04-22 00:36:42 +0200'>2017-04-22</span></td><td><a href='/guix/commit/gnu/packages/selinux.scm?id=f269ad2536366880c3d1fe6f9f4b5aad0e84414f'>gnu: Add libsepol.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>