Create the pty

kitty/boss.py

@@ -2,6 +2,11 @@
 # vim:fileencoding=utf-8
 # License: GPL v3 Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
 
+import os
+import fcntl
+import termios
+import struct
+
 from PyQt5.QtCore import QObject
 
 from .screen import Screen
@@ -15,6 +20,7 @@ class Boss(QObject):
         self.screen = Screen(opts, parent=self)
         self.term = TerminalWidget(opts, self.screen.linebuf, parent)
         self.term.relayout_lines.connect(self.relayout_lines)
+        self.master_fd, self.slave_fd = os.openpty()
 
     def apply_opts(self, opts):
         self.screen.apply_opts(opts)
@@ -22,3 +28,9 @@ class Boss(QObject):
 
     def relayout_lines(self, previous, cells_per_line, previousl, lines_per_screen):
         self.screen.resize(lines_per_screen, cells_per_line)
+        fcntl.ioctl(self.master_fd, termios.TIOCSWINSZ, struct.pack('4H', cells_per_line, lines_per_screen, 0, 0))
+
+    def shutdown(self):
+        os.close(self.slave_fd), os.close(self.master_fd)
+        del self.master_fd
+        del self.slave_fd

kitty/main.py

@@ -60,6 +60,7 @@ class MainWindow(QMainWindow):
 
     def shutdown(self):
         self.close()
+        self.boss.shutdown()
 
 
 def option_parser():