conditional statement

[python101]

I have 2 strings,
string1
string2

I'd like to make a conditional that if string2 is not in string1 print error message. How can I do that.
I tried:

if (string2 in string1)='False':
   print 'error'
 

but it did not work

[kdt]

I have 2 strings,
string1
string2

I'd like to make a conditional that if string2 is not in string1 print error message. How can I do that.
I tried:

if (string2 in string1)='False':
   print 'error'
 

but it did not work

>>> str1 = 'test'
>>> str2 = 'python'
>>> if not str1 in str2:
    print 'error'
 
 
error

HTH

[kdt]

Hi Python101,

I saw from another of your posts that you are either a bioinformatician, or working on biological data.

Hopefully you will find some of these links useful:

Quick intro from O'Reilly with useful examples.
O'Reilly Python for Bioinformatics

Beginners guide to Python aimed at Biologists from the Pasteur Institute:
Intro Python for Biologists

More advanced, but very easy to follow tutorial from Pasteur again. Covers most of the basic analysis required, as well as more advanced parser scripts to NCBI etc.
Python for Bioinformatics

All the best

[bartonc]

>>> str1 = 'test'
>>> str2 = 'python'
>>> if not str1 in str2:
    print 'error'
 
 
error

HTH

Yep. That's a good one. I also like the slightly more English version:

>>> str1 = 'test'
>>> str2 = 'python'
>>> if str1 not in str2:
    print 'error'
 
 
error

I also like the way this site displays code when "=python" is added inside the first CODE tag.

[kdt]

Yep. That's a good one. I also like the slightly more English version:

>>> str1 = 'test'
>>> str2 = 'python'
>>> if str1 not in str2:
    print 'error'
 
 
error

I also like the way this site displays code when "=python" is added inside the first CODE tag.

excellent, i was trying to add the tag earlier, just didn't know how!

cheers