sublime text 3增加浏览器预览

import sublime, sublime_plugin
import webbrowser

url_map = {
    #project Path 访问路径     browse address浏览地址
    'c:\\coreamp\htdocs\\' : 'http://127.0.0.1/'
}
class OpenBrowserCommand(sublime_plugin.TextCommand):
    def run(self,edit):
        window = sublime.active_window()
        window.run_command('save')
        url = self.view.file_name()
        flag = False
        for path, domain in url_map.items():
            if url.startswith(path):
                url = url.replace(path, domain).replace('\\', '/')
                flag = True
                break
        if not flag:
            url = 'file://' + url
        webbrowser.open_new(url)
        # webbrowser.get('chrome').open_new(url)

[
    { "keys": ["ctrl+shift+f10"], "command": "open_browser" },
]

webbrowser.get('safari').open_new(url)