# File: ChapterIOFiles/filterWord.py
""" File: names.txt
['Ada Lovelace\n', 'George Boole\n', 'Alan Turing\n', 'Charles Babbage\n', 'Guido Van Rossum']
['Ada', 'Lovelace']
['George', 'Boole']
['Alan', 'Turing']
['Charles', 'Babbage']
['Guido', 'Van', 'Rossum']
newlines= ['Ada', 'George', 'Alan', 'Charles', 'Guido']
newlines sorted= ['Ada', 'Alan', 'Charles', 'George', 'Guido']
Check new file: newnames.txt
"""
def main():
	f = open( "Texts/names.txt", "r" )
	lines = f.readlines() #list of lines(strings) from file
	f.close()
	print(lines)
	newlines = []
	for st in lines:
	        el = st.split() # string to list
	        print(el) # list of names 
	        newlines.append(el[0]) # list of first names
	print("newlines=",newlines)
	newlines.sort()
	print("newlines sorted=",newlines)
	f = open( "newnames.txt", "w" )
	#f.writelines( newlines ) #write a big string out of list
	newlines = [ k + '\n' for k in newlines] #add new line to all strings in list
	f.writelines(newlines)
	f.close()
	print("Check new file: newnames.txt!")

main()