Python tuple positive indexing or forward indexing and native indexing or backward indexing

Python tuple positive indexing or forward indexing  and native indexing or  backward indexing 

Positive index      0      1        2       3        4       5

    

                               90     50     30     20     99    10

Native index        -6      -5      -4      -3      -2      -1 

#accessing elements in python tuple indexing number and slicing

#python tuple positive indexing or forward indexing stat with 0 end with n-1

tuple=(40,70,12,23,78,"ram",45.77,78)

print(tuple)           #print all elements in tuple

print(tuple[3])      #print 3rd index element in tuple

print(tuple[1:4])  #print 1st index element to 4rd index element

print(tuple[:5])    #print 0 index elements to 5th index element

print(tuple[2:])    #print 2rd index elements to end of the tuple elements

#python tuple backward indexing or native indexing

print(tuple[-1]) #

print(tuple[-5:-1])

      

#iterate a tuple using positive indexing

pytuple=('d','j','a','n','g','o')

print(pytuple) #print all elements in tuple

for x in range(4):#range function stat with 0 to end 4

    print(pytuple[x])#x is iterate varaible it will print every time singlevalue

# iterate a tuple using negative indexing

pytuple=('d','j','a','n','g','o')

for x in range(-6,0): #print native indexing -6 index to before 0 index

    print(pytuple[x])

#how to check if an item exists or not in tuple elements

x=(45,89,34,55,'ram',90)

print(34 in x) #it is only for True or False 

#or

if(34 in x):

    print("34 is in x element")

else:

    print("34 is not in x element")

   

#python tuple length function

tuple=(56,23,44,89,12,'welcome')

print(tuple)

print(len(tuple))