Python: Find a word within a string -

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i'm trying find word within string python.

str1 = 'this string' if 'is' in str1:     print str1

in above example want not print str1. while in following example want print str2.

str2 = 'this string' if 'is' in str2:     print str2

how go doing in python?

split string words , search them:

if 'is' in str1.split(): # 'is' in ['this', 'string']     print(str1) # never printed  if 'is' in str2.split(): # 'is' in ['this', 'is', 'a', 'string']     print(str2) # printed

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