how to check if string contains a letter python code example

Example 1: python if string contains char

myString = "<text contains this>"
myOtherString = "AnotherString"

# Casting to string is not needed but it's good practice
# to check for errors 

if str(myString) in str(myOtherString): 
    # Do Something
else:
	# myOtherString didn't contain myString

Example 2: check if string contains python

>>> str = "Messi is the best soccer player"
>>> "soccer" in str
True
>>> "football" in str
False