[#3248|Console] Fix not accepting input under Python3

On Python 3 the chr function returns unicode so trying to decode will
result in an error. Applied a workaround to assign without decoding.

deluge/tests/test_ui_console_fields.py

@@ -16,6 +16,7 @@ class Parent(object):
     def __init__(self):
         self.border_off_x = 1
         self.pane_width = 20
+        self.encoding = 'utf8'
 
 
 class UICommonTestCase(unittest.TestCase):
@@ -39,4 +40,5 @@ class UICommonTestCase(unittest.TestCase):
             '/text/field/file/path',
             complete=False,
         )
-        self.assertTrue(t)  # Shut flake8 up (unused variable)
+        self.assertTrue(t)
+        self.assertTrue(t.handle_read(33))

deluge/ui/console/modes/cmdline.py

@@ -17,6 +17,7 @@ from io import open
 
 import deluge.component as component
 import deluge.configmanager
+from deluge.common import PY2
 from deluge.decorators import overrides
 from deluge.ui.console.cmdline.command import Commander
 from deluge.ui.console.modes.basemode import BaseMode, move_cursor
@@ -334,7 +335,7 @@ class CmdLine(BaseMode, Commander):
             if c > 31 and c < 256:
                 # Emulate getwch
                 stroke = chr(c)
-                uchar = ''
+                uchar = '' if PY2 else stroke
                 while not uchar:
                     try:
                         uchar = stroke.decode(self.encoding)

deluge/ui/console/modes/torrentlist/search_mode.py

@@ -11,6 +11,7 @@ from __future__ import unicode_literals
 
 import logging
 
+from deluge.common import PY2
 from deluge.decorators import overrides
 from deluge.ui.console.modes.basemode import InputKeyHandler, move_cursor
 from deluge.ui.console.modes.torrentlist.torrentactions import torrent_actions_popup
@@ -175,7 +176,7 @@ class SearchMode(InputKeyHandler):
         elif c > 31 and c < 256:
             old_search_string = self.search_string
             stroke = chr(c)
-            uchar = ''
+            uchar = '' if PY2 else stroke
             while not uchar:
                 try:
                     uchar = stroke.decode(self.torrentlist.encoding)

deluge/ui/console/widgets/fields.py

@@ -14,6 +14,7 @@ from __future__ import unicode_literals
 import logging
 import os
 
+from deluge.common import PY2
 from deluge.decorators import overrides
 from deluge.ui.console.modes.basemode import InputKeyHandler
 from deluge.ui.console.utils import colors
@@ -950,7 +951,7 @@ class TextInput(InputField):
         elif c > 31 and c < 256:
             # Emulate getwch
             stroke = chr(c)
-            uchar = ''
+            uchar = '' if PY2 else stroke
             while not uchar:
                 try:
                     uchar = stroke.decode(self.parent.encoding)