Python Tuples

What is Python Tuple
Advantages of tuple over list
creating a Python tuple
Accessing Elements in a Tuple
* Indexing * Negative Indexing
* Slicing Slicing with negative index
Changing a Tuple
Concatenation and Repeat
Deleting a Tuple
The tuple() Constructor
Python Tuple Methods and Tuple Membership Test
Iterating Through a Tuple (Programs)

Python Tutorial | Python tuples 5

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Python Tuple Methods

Methods that add items or remove items are not available with tuple. Only the following two methods are available.

count(x): Return the number of items that is equal to x

index(x): Return the index of the first item that is equal to x

all(): Return True if all elements of the tuple are true (or if the tuple is empty).

len() : Return the length (the number of items) in the tuple.

max() : Return the largest item in the tuple.

min(): Return the smallest item in the tuple

sorted(): Take elements in the tuple and return a new sorted list (does not sort the tuple itself).

sum(): Returns the sum of all elements in the tuple.

count(x):

Return the number of items that is equal to x

example:
n1=(1,2,3,2,1,4,5,1)
print(n1)
print(n1.count(1))
#to count total no of “1” present in tuple
#output: 3

n1=(1,2,3,2,1,4,5,1)
print(n1)
print(n1.count(1))

#Output

(1, 2, 3, 2, 1, 4, 5, 1)
3

Example:

n1=(1,2,3,2,1,4,5,1)
print(n1)
print(n1.count(2))
#to count total no of “2” present in tuple
#output: 2

n1=(1,2,3,2,1,4,5,1)
print(n1)
print(n1.count(2))

#Output

(1, 2, 3, 2, 1, 4, 5, 1)
2

Example:

n2=(‘h’,’e’,’l’,’l’,’o’)
print(n2)
print(n2.count(‘l’))

#to count total no of “l” present in tuple
#output: 2

n2=('h','e','l','l','o')
print(n2)
print(n2.count('l'))

#Output

('h', 'e', 'l', 'l', 'o')
2

index(x):

Return the index of the first item that is equal to x

n2=(‘h’,’e’,’l’,’l’,’o’)
print(n2)
print(n2.index(‘l’))
#to find position of “l” is present
#output: 2

print(n2.index(‘e’))
#to count total no of “e” is present
#output: 1

print(n2.index(‘x’))
#error : as element is not present

n2=('h','e','l','l','o')
print(n2)
print(n2.index('l'))
print(n2.index('e'))
print(n2.index('x'))

#Output
('h', 'e', 'l', 'l', 'o')
2
1
Traceback (most recent call last):
  File "E:\batch79\pp1.py", line 6, in <module>
    print(n2.index('x'))
ValueError: tuple.index(x): x not in tuple

all():

Return True if all elements of the tuple are true (or if the tuple is empty).

n1=(1,20,30,22,31,54,5,1)
print(n1)
print(all(n1))

n1=(1,20,30,22,31,54,5,1)
print(n1)
print(all(n1))
n1=()
print(n1)
print(all(n1))
n1='False',
print(n1)
print(all(n1))
n1=(' ',' ')
print(n1)
print(all(n1))
n1=(0,0,0)
print(n1)
print(all(n1))
n1=(0,0,1)
print(n1)
print(all(n1))
n1=(0,1,1)
print(n1)
print(all(n1))
n1=(1,1,1)
print(n1)
print(all(n1))

#Output
(1, 20, 30, 22, 31, 54, 5, 1)
True
()
True
('False',)
True
(' ', ' ')
True
(0, 0, 0)
False
(0, 0, 1)
False
(0, 1, 1)
False
(1, 1, 1)
True

max():

Return the largest item in the tuple.

n1=(1,20,30,22,31,54,5,1)
print(n1)
print(max(n1))

#1
n1=(1,20,30,22,31,54,5,1)
print(n1)
print(max(n1))
#2
n1=(12,34,54,56,76,78)
print(n1)
print(max(n1))

#Output
(1, 20, 30, 22, 31, 54, 5, 1)
54
(12, 34, 54, 56, 76, 78)
78

min():

Return the smallest item in the tuple

n1=(1,20,30,22,31,54,5,1)
print(n1)
print(min(n1))

#1
n1=(1,20,30,22,31,54,5,1)
print(n1)
print(min(n1))
#2
n1=(12,34,54,56,76,78)
print(n1)
print(min(n1))

#Output:
(1, 20, 30, 22, 31, 54, 5, 1)
1
(12, 34, 54, 56, 76, 78)
12

len():

Return the length (the number of items) in the tuple.

n1=(1,20,30,22,31,54,5,1)
print(n1)
print(len(n1))

#1
n1=(10,20,30,40,50)
print(n1)
print(len(n1))
#2
n1=(1,20,30)
print(n1)
print(len(n1))
#3
n1=(1,20,30,22,31,54,5,1)
print(n1)
print(len(n1))

#Output
(1, 20, 30, 22, 31, 54, 5, 1)
8
PS E:\batch79> python pp1.py
(10, 20, 30, 40, 50)
5
(1, 20, 30)
3
(1, 20, 30, 22, 31, 54, 5, 1)
8

sum():

Returns the sum of all elements in the tuple.

n1=(1,20,30,22,31,54,5,1)
print(n1)
print(sum(n1))

#1
n1=(1,20,30,22,31,54,5,1)
print(n1)
print(sum(n1))
#2
n1=(12,34,54,56,76,78)
print(n1)
print(sum(n1))

#Output
(1, 20, 30, 22, 31, 54, 5, 1)
164
(12, 34, 54, 56, 76, 78)
310

sorted():

Takes elements in the tuple and return a new sorted list (does not sort the tuple itself).

n1=(1,20,30,22,31,54,5,1)
print(n1)
print(sorted(n1))

#1
n1=(1,20,30,22,31,54,5,1)
print(n1)
print(sorted(n1))
print(n1)
#2
n1=(45,3,76,8,34,6)
print(n1)
n2=sorted(n1)
print(n2)

#Output
(1, 20, 30, 22, 31, 54, 5, 1)
[1, 1, 5, 20, 22, 30, 31, 54]
(1, 20, 30, 22, 31, 54, 5, 1)
(45, 3, 76, 8, 34, 6)        
[3, 6, 8, 34, 45, 76]

Other Tuple Operations

Tuple Membership Test

We can test if an item exists in a tuple or not, using the keyword in.

# In operation

n = (‘a’,’p’,’p’,’l’,’e’,)
print(‘a’ in n)
# Output: True
print(‘b’ in n)
# Output: False

# In operation
n = ('a','p','p','l','e',)
print('a' in n)
print('b' in n)

#Output
True
False

n=tuple((“amit”,”sumit”,”kapil”))
print(n)
print(“amit” in n)
print(“amita” in n)
print(“sumit” in n)
print(“sumita” in n)
print(“Sumit” in n)
print(“Amit” in n)

Output:

(‘amit’, ‘sumit’, ‘kapil’)
True
False
True
False
False
False

n=tuple(("amit","sumit","kapil"))
print(n)
print("amit" in n)
print("amita" in n)
print("sumit" in n)
print("sumita" in n)
print("Sumit" in n)
print("Amit" in n)

#Output
('amit', 'sumit', 'kapil')
True 
False
True 
False
False
False

# Not in operation

n = (‘a’,’p’,’p’,’l’,’e’,)
print(‘a’ not in n)
# Output: False
print(‘b’ not in n)
# Output: True

# Not in operation

n = ('a','p','p','l','e',)
print('a' not in n)
print('b' not in n)

#Output
False
True

n=tuple((“amit”,”sumit”,”kapil”))
print(n)
print(“amit” not in n)
print(“amita” not in n)
print(“sumit” not in n)
print(“sumita” not in n)
print(“Sumit” not in n)
print(“Amit” not in n)

Output:

(‘amit’, ‘sumit’, ‘kapil’)
False
True
False
True
True
True

n=tuple(("amit","sumit","kapil"))
print(n)
print("amit" not in n)
print("amita" not in n)
print("sumit" not in n)
print("sumita" not in n)
print("Sumit" not in n)
print("Amit" not in n)

#Output
('amit', 'sumit', 'kapil')
False
True
False
True
True
True

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Python Basic Programming Tutorial

Python Introduction Getting started in Python Programming Python propgramming fundamentals Python Operators Python If Condition Python for loop Python range construct Python While loop break and continue statements Different looping techniques Python List Python String Python Functions Python Inbuilt Functions Python Recursion Using Python Library Python Tuples Python Dictionary Python Sets Python Strings Python Exception Handling Python Data File Handling