#-------------------------------------------------#
# Set Variables                                   #
#-------------------------------------------------#

input = open("file.txt")
whitelist = ('a','b','c','d','e','f','g') # whitelist of letters
letters = {}

#-------------------------------------------------#
#  Functions                                      #
#-------------------------------------------------#

input = open("inputfile.txt")
output = open("outputfile.txt", 'w')

output.writelines([(line) for line in input if not line.startswith('>')])