["python","string"]
Check if a word is in a string in Python

I'm working with Python, and I'm trying to find out if you can tell if a word is in a string. I have found some information about identifying if the word is in the string - using .find, but is there a way to do an if statement. I would like to have something like the following: if string.find(word): print("success")
What is wrong with: if word in mystring: print('success')