It seems that there is a bug in txt2tag on windows. Newlines are written as  
the ascii sequence 10 10 13 rather than 10 13. This makes all new lines become 
double new lines. 

It seems to be rooted in python 3 and its handling of newlines. The solution is 
simple but took me forever to figure out.


change the Savefile() to 

  def Savefile(file_path, contents):
    try:
      f = open(file_path, 'w', newline="\n") 

Essentially adding the newline="\n" argument