Removing blank lines from Blogger blogs

with open("Blogger.txt", 'r') as inn:    # Text copied onto Blogger.txt 

  L = inn.readlines()

  L1 = []

  for item in L:

    if item != '\n':

      L1.append(item)

with open("Blogger.txt", 'w') as out:    # Write back to Blogger.txt

  for item in L1:

    out.write(item)