Sublime text reopen closed tab plugin

# openLastClosedFile plugin v1.0.2
#
# example keybinding:
# <binding key="shift+ctrl+t" command="openLastClosedFile"/>
#
# Known issues:
#   there has to be one tab open to make the keybinding work

import sublime, sublimeplugin, os

# we need to be able to load the filenames when command gets called
class openLastClosedFileSecure(sublimeplugin.Plugin):
    def onClose(self, view):
        # untitled / not saved files have no filename
        if view.fileName() <> None:
            file = open(sublime.packagesPath()+"\\User\\openLastClosedFile.tmp", 'a')
            file.writelines(view.fileName()+"\n")
            file.close()

        print sublime.packagesPath()


class openLastClosedFileCommand(sublimeplugin.TextCommand):
    def run(self, view, args):
        fileName = sublime.packagesPath()+"\\User\\openLastClosedFile.tmp"

        if os.path.isfile(fileName):
            readFile = open(fileName,"r")
            lines = readFile.readlines()
            readFile.close()

            length = len(lines)

            if length > 0:
                lastline = lines[length-1]
                lastline = lastline.rstrip("\n")

                view.window().openFile(lastline, 0, 0)

                writeFile = open(fileName, "w")
                writeFile.writelines([item for item in lines[0:length-1]])
                writeFile.close()