On 02/17/2014 06:12 AM, Oscar Benjamin wrote:
On 17 February 2014 09:07, Aaron Misquith <aaronmisqu...@gmail.com> wrote:
The program that i'm working on just combines two files. Any help on
performing an union such that a keyword would not be repeated would be
appreciated.
Code:
with open("C:\\File1.txt") as fin1: lines = fin1.readlines()
with open("C:\\File2.txt") as fin2: lines.extend(fin2.readlines())
with open("D:\\file3.txt", "r+") as fout: fout.write('\n'.join(lines))
Something like this:
with open(r'D:\file3.txt', 'r+') as fout:
keywords_seen = set()
for filename in r'C:\File1.txt', r'C:\File2.txt':
with open(filename) as fin:
for line in fin:
keyword = line.strip()
if keyword not in keywords_seen:
fout.write(line)
keywords.add(keyword)
Why are you opening the output file with mode 'r+'? Are you intending
to only overwrite part of the file? I think you probably should use
mode 'w' instead.
You forgot to append the newline to strings in the write() method calls.
fout.write(line + "\n")
--
DaveA
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