On Tue, 12 Jul 2005 08:25:50 -0700, rorley wrote:
> OK, so my problem is I have a text file with all of these instances,
> for example 5000 facts about animals. I need to go through the file
> and put all of the facts (lines) that contain the word lion into a file
> called lion.txt. If I come across an animal or other word for which a
> file does not yet exist I need to create a file for that word and put
> all instances of that word into that file. I realize that this should
> probably create 30,000 files or so. Any help would be REALLY
> appreciated. Thanks. Reece
Sounds like homework to me...
Start by breaking the big problem down into little problems:
Step 1: read the data from the file
You do that with something like this:
data = file("MyFile.txt", "r").read()
Notice I said *something like* -- that's a hint that you want to change
that to something slightly different.
Step 2: grab each line, one at a time
Somehow you want to read lines (hint! hint!) from the file, so that you
have a list of text lines in data. How do you read lines (hint!) from a
file in Python?
Once you do that, data should look something like this:
["lions are mammals\n", "lions eat meat\n", "sheep eat grass\n"]
So you can work with each line in data with:
for line in data:
do_something(line)
Step 3: grab each word from the line
I'll make this one easy for you:
words = line.split()
words now looks like: ["lions", "are", "mammals"]
Step 4: for each word, open a file:
This one is also easy:
for word in words:
fp = file(word, "w")
fp.write(all the other words)
fp.close()
Hint: this code won't quite do what you want. You need to change a few
things.
Does this help? Is that enough to get started? See how far you get, and
then come back for more help.
--
Steven.
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