Conditions
The 'is' operator
Unlike the double equals operator "==", the "is" operator does not match the values of the variables, but the instances themselves
x = [1,2,3] y = [1,2,3] print(x == y) # Prints out True print(x is y) # Prints out False
The "in" operator
The "in" operator could be used to check if a specified object exists within an iterable object container, such as a list: name = "John" if name in ["John", "Rick"]: print("Your name is either John or Rick.")
Boolean operators
The "and" and "or" boolean operators allow building complex boolean expressions, for example: name = "John" age = 23 if name == "John" and age == 23: print("Your name is John, and you are also 23 years old.")
if name == "John" or name == "Rick": print("Your name is either John or Rick.")
Exercise
Change the variables in the first section, so that each if statement resolves as True.
change this code
number = 10 second_number = 10 first_array = [] second_array = [1,2,3]
if number > 15: print("1")
if first_array: print("2")
if len(second_array) == 2: print("3")
if len(first_array) + len(second_array) == 5: print("4")
if first_array and first_array[0] == 1: print("5")
if not second_number: print("6")