On Wed, May 9, 2012 at 10:00 AM, Afonso Duarte <adua...@itqb.unl.pt> wrote: > Dear All, > > > > I’m new to Python and started to use it to search text strings in big > (>500Mb) txt files. > > I have a list on text file (e.g. A.txt) that I want to use as a key to > search another file (e.g. B.txt), organized in the following way: > > > > A.txt: > > > > Aaa > > Bbb > > Ccc > > Ddd > > . > > . > > . > > > > B.txt > > > > Bbb > > 1234 > > Xxx > > 234 > > > > > > I want to use A.txt to search in B.txt and have as output the original > search entry (e.g. Bbb) followed by the line that follows it in the B.txt > (e.g. Bbb / 1234). > > I wrote the following script: > > > > > > object = open(B.txt', 'r') > > lista = open(A.txt', 'r') > > searches = lista.readlines() > > for line in object.readlines(): > for word in searches: > if word in line:> > print line+'\n' > > >
Don't give up on this group so quickly. You will get lots of help here. As to your problem: Do you know about enumerate? Learn about it here: http://docs.python.org/library/functions.html#enumerate if you change your code above to: for index, word in enumerate line: print line, word[index+1] I think you will get what you are looking for > > > > > But from here I only get the searching entry and not the line afterwards, I > tried to google it but I got lost and didn’t manage to do it. > > Any ideas ? I guess that this is basic scripting but I just started . > > > > Best > > > > Afonso > > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor > -- Joel Goldstick _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
