pkg/install_requires: pin urwid at 2.1.2

At 2.2 we get a failure to import urwid.main_loop
1 files changed, 1 insertions(+), 1 deletions(-)

M setup.cfg
M setup.cfg +1 -1
@@ 25,7 25,7 @@ long-description = file: README
 [options]
 packages = find:
 install_requires =
-    urwid
+    urwid==2.1.2
 
 
 [options.entry_points]