title: icon_path isn't working in win10toast module in python
body: <p>I'm attempting a countdown clock in python 3.7 using win10toast, time and playsound. Here's the code:</p>
  <pre><code>import time
  import playsound
  import win10toast
  
  Toaster = win10toast.ToastNotifier()
  
  def countdown(y):
      while y &gt; 0:
          print(y)
          y -= 1
          time.sleep(1)
      playsound.playsound('alarm-clock-ringing.mp3')
      Toaster.show_toast('Countdown notifier', 'countdown over', duration=9,
                         icon_path=r'D:\img.ico')
  
  
  try:
      x = int(input('how many seconds do you want to countdown?: '))
      countdown(x)
  
  except ValueError:
      print('That wasn\'t an integer! Please enter an integer!')
  
  </code></pre>
  <p>It works fine, except for icon_path in line 14. The error I'm getting is:</p>
  <blockquote>
  <p>ERROR:root:Some trouble with the icon (D:\img.ico): (0, 'LoadImage', 'No error message is available')</p>
  </blockquote>
  <p>By the way, I'm using windows 10 pro 64-bit.</p>
  <p>Thank you!</p>