RememberPositionOfClosed Sublime Text 3 Plugin

import sublime, sublime_plugin
from collections import defaultdict

class RememberPositionOfClosed(sublime_plugin.EventListener):
    """Remembers the position of closed views, so when they are reopened,
    they can be restored to their previous position."""

    # Per window, a stack with the position of closed views.
    closed_cache = defaultdict(list)

    def on_window_command(self, window, command_name, args):
        if command_name == 'close':
            self.closed_cache[window.id()].append(window.active_view().viewport_position())
        elif command_name == 'reopen_last_file':
            # The timeout needs to be greater than 0, otherwise setting the viewport position will not work.
            sublime.set_timeout(lambda: self.update_reopened(window), 20)

    def update_reopened(self, window):
        window.active_view().set_viewport_position(self.closed_cache[window.id()].pop(), False)