add unicode alias to unix_console

Author: RonnyPfannschmidt

pyrepl/unix_console.py

@@ -30,6 +30,10 @@
 class InvalidTerminal(RuntimeError):
     pass
 
+try:
+    unicode
+except NameError:
+    unicode = str
 
 _error = (termios.error, curses.error, InvalidTerminal)