Write Python program to perform following operations on Tuples: Create Tuple, Access Tuple, Update Tuple, Delete Tuple
A tuple is a sequence of immutable Python objects. Tuples are sequences, just like
lists. The differences between tuples and lists are, the tuples cannot be changed unlike
lists and tuples use parentheses, whereas lists use square brackets.
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| Write Python program to perform following operations on Tuples: Create Tuple, Access Tuple, Update Tuple, Delete Tuple |
a) Creating a Tuple: Creating a tuple is as simple as putting different comma separated values. Optionally you can put these comma-separated values between
parentheses also.
#totalprogrammingcode
Example
tup1 = ('physics', 'chemistry', 1997, 2000);
tup2 = (1, 2, 3, 4, 5 );
tup3 = "a", "b", "c", "d";
The empty tuple is written as two parentheses containing nothing
tup1 = ();
To write a tuple containing a single value you have to include a comma, even though
there is only one value.
tup1 = (50,);
Like string indices, tuple indices start at 0, and they can be sliced, concatenated, and so
on.
To access values in tuple, use the square brackets for slicing along with the index or
indices to obtain value available at that index.
Example:
#!/usr/bin/Python
tup1 = ('physics', 'chemistry', 1997, 2000);
tup2 = (1, 2, 3, 4, 5, 6, 7 );
print "tup1[0]: ", tup1[0];
print "tup2[1:5]: ", tup2[1:5];
Output:
tup1[0]: physics
tup2[1:5]: [2, 3, 4, 5]
c) Updating Tuples: Tuples are immutable which means you cannot update or change
the values of tuple elements. You are able to take portions of existing tuples to create
new tuples.
Example:
#!/usr/bin/Python
tup1 = (12, 34.56);
tup2 = ('abc', 'xyz');
# Following action is not valid for tuples
# tup1[0] = 100;
# So let's create a new tuple as follows
tup3 = tup1 + tup2;
print tup3;
Output:
(12, 34.56, 'abc', 'xyz')
d) Delete Tuple Elements: Removing individual tuple elements is not possible. There
is, of course, nothing wrong with putting together another tuple with the undesired
elements discarded. To explicitly remove an entire tuple, just use the del statement.
Example:
#!/usr/bin/Python
tup = ('physics', 'chemistry', 1997, 2000);
print tup;
del tup;
Examples
1. Create a tuple and find the minimum and maximum number from it.
tuple = (20,30,50,70,90)
print("Maximum value from tuple is",max(tuple))
print("Minimum value from tuple is",min(tuple))
2. Write a Python program to find the repeated items of a tuple
tuple = (2,3,9,9,8,8,8,2,2,5,5,5,5)
print("Default tuple is :",tuple)
num = int(input("Choose the item from above tuple :"))
for i in range(len(tuple)):
tuple1 = tuple[i]
a =tuple.count(num)
print(num,"is repeated",a,"times")
