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

Provide your code so far and explain what your problem is? We don't do homework for you. — user2665694
– user2665694, Commented Aug 13, 2012 at 8:17

Ashwini Chaudhary · Accepted Answer · 2012-08-27 17:11:42Z

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, 2012 at 17:11

answered Aug 13, 2012 at 8:18

Ashwini Chaudhary

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2 Comments

Sara Over a year ago

can you please give a positive rating to my question I would really appreciate :), question can be found here stackoverflow.com/questions/12138298/…

Martijn Pieters Over a year ago

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.

pod2metra · Accepted Answer · 2012-08-13 08:19:59Z

1

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

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

answered Aug 13, 2012 at 8:19

pod2metra

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2 Comments

pod2metra Over a year ago

if line should be absolutely the same you may use template == i

tzelleke Over a year ago

just a stylistic remark: use i for integers. here s or l is probably more suited.

zenpoy · Accepted Answer · 2012-08-13 08:26:05Z

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, 2012 at 8:26

zenpoy

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Comments

NIlesh Sharma · Accepted Answer · 2012-08-13 08:30:23Z

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, 2012 at 8:30

NIlesh Sharma

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