Duplicate Remove

 #!/usr/bin/python
# A very simple program to remove duplicates in a text file
# How it works: Putt the text file in the same folder then after run script, follow the instruction
# Made by Ali Ahmer aka King Ali
# www.facebook.com/master.king.ali.333

def banner():
    print('=====================================================')
    print('|!!|      Duplicate Entry Remover        |!!|')
    print('=====================================================')

banner()

inpt=input('Input Text file name e.g. input.txt :')
oupt=input('Output file name e.g. output.txt :')

if __name__ == '__main__':
    f = open(oupt,'w+')
    flag = False
    print('Please Wait. File in Process.....')
    with open(inpt) as fp:
        for line in fp:
            for temp in f:
                if temp == line:
                    flag = True
                    print('Duplicate Found...!')
                    break
            if flag == False:
                f.write(line)
            elif flag == True:
                flag = False
            f.seek(0)
        f.close()
print('.../done')