Sublime Text 3 plugin to display total line count of a file.

DisplayLineCount.py

import sublime, sublime_plugin, time

last_change = time.time()
update_interval = 1.5  # s

class DisplayLineCount(sublime_plugin.EventListener):
	def update_line_count(self, view):
		line_count = view.rowcol(view.size())[0] + 1
		view.set_status("line_count", "{0} lines".format(line_count))

	def on_modified(self, view):
		global last_change
		current_change = time.time()
		# Check if we haven't embedded the change in the last update
		if current_change > last_change + update_interval:
			last_change = current_change
			sublime.set_timeout(lambda: self.update_line_count(view),
								int(update_interval * 1000))

	on_post_save_async = update_line_count
	on_modified_async = update_line_count
	on_activated_async = update_line_count