a = True # dont forget capital T and F, it is case sensitive
b = False
if b == True:
print("b is true")
if b:
print("b is true") # this is the shorthand of the above IF statement
if b == False:
print("b is false") # again dont forget True and False are case sensitive
In Python 3.x True and False are keywords and will always be equal to 1 and 0.
isinstance(x[0], (int, float))