Related Code: This function is bound to the button "Move File" (https://i.stack.imgur.com/3TBLq.png)

def move_file():
  filename_url = "y2meta.com"
  format = ".mp3"
  space = filename_url + " "
  hyphen ="- "
  quality_file_320 = " (320kbps)"
  backslash = "\\"
  filename = '\\'+ space + hyphen +title+ quality_file_320 +format
  download_source = r'C:\Users\kevin\Downloads'
  source = download_source + filename
  destination_source = r'C:\Users\kevin\Music'
  destination = destination_source
  dest = shutil.move(source,destination)

title = the Text which I enter in the Textbox (i.e. Runar) -->!(https://i.stack.imgur.com/3TBLq.png)

When I try to move a File it tells me everytime "File not Found Error", but I can't figure out what is wrong with my code, because the file is in the destination. A file that I want to move (i.e. Runar) !(https://i.stack.imgur.com/gtxUn.png)

I hope you can help me, and I'm sorry if this questions has been asked already, the solutions just didn't work for me. Thank you for your help in advance.