CODEWITHSUNDEEP
pythonstring
Marco Rimoldi
Marco Rimoldi

Reputation: 193

How to find words inside two text files

First part of the script is OK (its removes http:// and www.). Later I need to check if the words inside source are presents in exists.

source = open('/net/sign/temp/python_tmp/script1/source.txt','r')
exists = open('/net/sign/temp/python_tmp/script1/exists.txt','r')

with source as f:
        lines = f.read()
        lines = lines.replace('http://','')
        lines = lines.replace('www.','')

        for a in open('/net/sign/temp/python_tmp/script1/exists.txt'):
            if a == lines:
                print("ok")

The content of source.txt:

www.yahoo.it
www.yahoo.com
www.google.com
http://www.libero.it

The content of exists.txt:

www.yahoo.com

Upvotes: 3

Views: 252

Answers (2)

timgeb
timgeb

Reputation: 78690

Ok, judging from your example files what you are actually trying to do is find the lines which both text files share. If your files are not gigantic, a simple solution would be to read in the files and compute the intersection of their sets of lines.

>>> with open('source.txt') as s, open('exists.txt') as e:
...     result = set(s).intersection(e)
... 
>>> result
set(['www.yahoo.com\n'])

You can replace 'http://' and 'www.' afterwards with

result = [x.replace('http://', '').replace('www.', '') for x in result]

if you want to.

Upvotes: 3

Ihor Pomaranskyy
Ihor Pomaranskyy

Reputation: 5611

Something like this should work:

source_words = set()
with open('source.txt') as source:
    for word in source.readlines():
        source_words.add(word.replace('http://','').replace('www.','').strip())

exist_words = set()
with open('exist.txt') as exist:
    for word in exist.readlines():
        exist_words.add(word.replace('http://','').replace('www.','').strip())

print("There {} words from 'source.txt' in 'exists.txt'".format(
   "are" if exist_words.intersection(source_words) else "aren't"
))

If you need to get exact words which are present in both files, they are in the intersection result:

print("These words are in both files:")
for word in exist_words.intersection(source_words):
    print(word)

Upvotes: 4

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