Create a tuple of special characters you will be checking for. Create a for loop and use string.find()
Maybe you can implement it as follows:
test="How are you?!!!#"
#Say you have a list of chrs like @,#,$,!,%,^,&,* etc
spl_chr='!'#If you are looking for !
print "not found"
print "Found spl caracter at "+loc
Thats all. For more special characters you can create an array of spl characters and check for each one in a loop