Another try for issue#1185

glances/compat.py

@@ -92,7 +92,7 @@ if PY3:
     def b(s):
         if isinstance(s, binary_type):
             return s
-        return s.encode('latin-1')
+        return s.encode('utf-8')
 
     def nativestr(s):
         if isinstance(s, text_type):

glances/plugins/glances_wifi.py

@@ -21,7 +21,7 @@
 
 import operator
 
-from glances.compat import u
+from glances.compat import b
 from glances.logger import logger
 from glances.plugins.glances_plugin import GlancesPlugin
 
@@ -195,7 +195,7 @@ class Plugin(GlancesPlugin):
             if len(hotspotname) > ifname_max_width:
                 hotspotname = '_' + hotspotname[-ifname_max_width + 1:]
             # Add the new hotspot to the message
-            msg = '{:{width}}'.format(u(hotspotname),
+            msg = '{:{width}}'.format(b(hotspotname),
                                       width=ifname_max_width)
             ret.append(self.curse_add_line(msg))
             msg = '{:>7}'.format(i['signal'], width=ifname_max_width)