Comparing some data of a file with another file in python

Question

I do have a file f1 which Contains some text lets say "All is well". In Another file f2 I have maybe 100 lines and one of them is "All is well".

Now I want to see if file f2 contains content of file f1.

I will appreciate if someone comes with a solution.

Thanks

[What have you tried?](http://mattgemmell.com/2008/12/08/what-have-you-tried/) — Some programmer dude, Aug 13 '12 at 08:16
Provide your code so far and explain what your problem is? We don't do homework for you. — , Aug 13 '12 at 08:17

Ashwini Chaudhary · Accepted Answer · 2012-08-27T17:11:42.723

1

with open("f1") as f1,open("f2") as f2:
    if f1.read().strip() in f2.read():
         print 'found'

Edit: As python 2.6 doesn't support multiple context managers on single line:

with open("f1") as f1:
    with open("f2") as f2:
       if f1.read().strip() in f2.read():
             print 'found'

edited Aug 27 '12 at 17:11

answered Aug 13 '12 at 08:18

Ashwini Chaudhary

can you please give a positive rating to my question I would really appreciate :), question can be found here http://stackoverflow.com/questions/12138298/does-with-open-not-works-with-python-2-6 – Sara Aug 27 '12 at 09:54
As Sara discovered, this only works in Python 2.7; in Python 2.6, you have to nest the `with` statements as multiple context managers on one line is not yet supported. – Martijn Pieters Aug 27 '12 at 16:56

score 1 · Answer 2 · answered Aug 13 '12 at 08:19

1

template = file('your_name').read()

for i in file('2_filename'):
    if template in i:
       print 'found'
       break

answered Aug 13 '12 at 08:19

pod2metra

if line should be absolutely the same you may use template == i – pod2metra Aug 13 '12 at 08:21
1

just a stylistic remark: use `i` for `integers`. here `s` or `l` is probably more suited. – tzelleke Aug 13 '12 at 08:41

score 0 · Answer 3 · answered Aug 13 '12 at 08:26

0

with open(r'path1','r') as f1, open(r'path2','r') as f2:
    t1 = f1.read()
    t2 = f2.read()
    if t1 in t2:
        print "found"

Using the other methods won't work if there's '\n' inside the string you want to search for.

answered Aug 13 '12 at 08:26

zenpoy

score 0 · Answer 4 · answered Aug 13 '12 at 08:30

0

fileOne = f1.readlines()
fileTwo = f2.readlines()

now fileOne and fileTwo are list of the lines in the files, now simply check

if set(fileOne) <= set(fileTwo):
    print "file1 is in file2"

answered Aug 13 '12 at 08:30

NIlesh Sharma

4 Answers4