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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<div class='path'>path: <a href='/guix/log/?id=4091b6c4c2b76ac9308e8449e2b58c6a49455f0f'>root</a>/<a href='/guix/log/tests?id=4091b6c4c2b76ac9308e8449e2b58c6a49455f0f'>tests</a>/<a href='/guix/log/tests/transformations.scm?id=4091b6c4c2b76ac9308e8449e2b58c6a49455f0f'>transformations.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/transformations.scm?id=4091b6c4c2b76ac9308e8449e2b58c6a49455f0f&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-03-05 12:49:27 +0100'>2021-03-05</span></td><td><a href='/guix/commit/tests/transformations.scm?id=90ea8b16eb519a88d8f739fea5a416c0b99de19f'>profiles: 'package-&gt;manifest-entry' preserves transformations by default.</a><span class='msg-avail'>...<span class='msg-tooltip'>Previously, transformations applied from a manifest (rather than via
"guix install") would be lost.  This change fixes that and simplifies
things.

Reported by zimoun at
&lt;https://lists.gnu.org/archive/html/guix-devel/2021-02/msg00153.html&gt;.

* guix/profiles.scm (default-properties): New procedure.
(package-&gt;manifest-entry): Use it for #:properties.
* guix/scripts/pack.scm (guix-pack)[with-transformations]: Remove.
Remove caller.
* guix/scripts/package.scm (transaction-upgrade-entry): Remove calls to
'manifest-entry-with-transformations'.
* tests/guix-package.sh: Add test.
* tests/transformations.scm ("options-&gt;transformation + package-&gt;manifest-entry"):
New test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-01-19 17:45:39 +0100'>2021-01-19</span></td><td><a href='/guix/commit/tests/transformations.scm?id=9ab817b2a4601b4a6755983590ed7d93ebdc8d09'>transformations: Add '--with-latest'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/upstream.scm (upstream-source-compiler): New procedure.
(%updaters): Set! it.
* guix/transformations.scm (transform-package-latest): New procedure.
(%transformations): Add 'with-latest'.
(%transformation-options, show-transformation-options-help/detailed):
Add '--with-latest'.
* tests/transformations.scm ("options-&gt;transformation, with-latest"):
New test.
* doc/guix.texi (Package Transformation Options): Document it.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-12-27 17:23:40 +0100'>2020-12-27</span></td><td><a href='/guix/commit/tests/transformations.scm?id=e38d90d497e19e00263fa28961c688a433154386'>transformations: Add '--with-patch'.</a><span class='msg-avail'>...<span class='msg-tooltip'>Suggested by Philippe Swartvagher &lt;philippe.swartvagher@inria.fr&gt;.

* guix/transformations.scm (transform-package-patches): New procedure.
(%transformations): Add it as 'with-patch'.
(%transformation-options, show-transformation-options-help/detailed):
Add '--with-patch'.
* tests/transformations.scm ("options-&gt;transformation, with-patch"): New
test.
* doc/guix.texi (Package Transformation Options): Document it.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-12-21 17:47:35 +0100'>2020-12-21</span></td><td><a href='/guix/commit/tests/transformations.scm?id=527551287011888c2ba13fe92e636300ce625430'>tests: Check the effect of '--without-tests' on implicit inputs.</a><span class='msg-avail'>...<span class='msg-tooltip'>* tests/transformations.scm ("options-&gt;transformation, without-tests"):
Ensure TAR has #:tests? #f.
</span></span></td><td>Ludovic Courtès</td></tr>