Python Tuples - Softlogic Tutorial

Tuple is a sequence of immutable python objects. Scenes similar to Tuples lists. The difference between tuples and lists is that, unlike lists, tuples do not change and tuples use parentheses, but lists use square brackets.

It is easy to create a tuple, just as you can put different comma separated values. Optionally you can also put these comma-separated values ​​between parentheses

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,);

Creating Tuples:

# An empty tuple

empty_tuple = ()

print (empty_tuple)

Run on IDE

Output:

 ()

# Creating non-empty tuples

  

# One way of creation

tup = 'python', 'geeks'

print(tup)

  

# Another for doing the same

tup = ('python', 'geeks')

print(tup)

Run on IDE

Output:

('python', 'geeks')

('python', 'geeks')

Concatenation of Tuples:

# Code for concatenating 2 tuples

tuple1 = (0, 1, 2, 3)

tuple2 = ('python', 'geek')

# Concatenating above two

print(tuple1 + tuple2)

Run on IDE

Output:

(0, 1, 2, 3, 'python', 'geek')

 Nesting of Tuples:

# Code for creating nested tuples

tuple1 = (0, 1, 2, 3)

tuple2 = ('python', 'geek')

tuple3 = (tuple1, tuple2)

print(tuple3)

Run on IDE

Output:

((0, 1, 2, 3), ('python', 'geek'))

 Repetition in Tuples:

# Code to create a tuple with repetition

tuple3 = ('python',)*3

print(tuple3)

Run on IDE

Output

 ('python', 'python', 'python')

Try the above without a comma and check. You will get tuple3 as a string ‘pythonpythonpython’.

 Immutable Tuples:

#code to test that tuples are immutable

tuple1 = (0, 1, 2, 3)

tuple1[0] = 4

print(tuple1)

Run on IDE

Output

Traceback (most recent call last):

  File "e0eaddff843a8695575daec34506f126.py", line 3, in

   tuple1[0]=4

TypeError: 'tuple' object does not support item assignment

 Slicing in Tuples:

# code to test slicing

tuple1 = (0 ,1, 2, 3)

print(tuple1[1:])

print(tuple1[::-1])

print(tuple1[2:4])

Run on IDE

Output

(1, 2, 3)

(3, 2, 1, 0)

(2, 3)

 Deleting a Tuple:

# Code for deleting a tuple

tuple3 = ( 0, 1)

del tuple3

print(tuple3)

Run on IDE

Error:

Traceback (most recent call last):

 File "d92694727db1dc9118a5250bf04dafbd.py", line 6, in <module>

       print(tuple3)

NameError: name 'tuple3' is not defined

Output:

(0, 1)

 Finding Length of a Tuple:

# Code for printing the length of a tuple

tuple2 = ('python', 'geek')

print(len(tuple2))

Run on IDE

Output:

2

Converting a list to a Tuple:

# Code for converting a list and a string into a tuple

list1 = [0, 1, 2]

print(tuple(list1))

print(tuple('python')) # string 'python'

Run on IDE

Output:

(0, 1, 2)

('p', 'y', 't', 'h', 'o', 'n')

Takes a single parameter which may be a list,string,set or even a dictionary( only keys are taken as elements) and converts them to a tuple.

Tuples in a loop:

#python code for creating tuples in a loop

  tup = ('geek',)

n = 5  #Number of time loop runs

for i in range(int(n)):

    tup = (tup,)

    print(tup)

Run on IDE

Output:

(('geek',),)

((('geek',),),)

(((('geek',),),),)

((((('geek',),),),),)

(((((('geek',),),),),),)

 Using cmp(), max() , min():

# A python program to demonstrate the use of 

# cmp(), max(), min()

  tuple1 = ('python', 'geek')

tuple2 = ('coder', 1)

  if (cmp(tuple1, tuple2) != 0):

    # cmp() returns 0 if matched, 1 when not tuple1 

    # is longer and -1 when tuple1 is shoter

    print('Not the same')

else:

    print('Same')

print ('Maximum element in tuples 1,2: ' + 

        str(max(tuple1)) +  ',' + 

        str(max(tuple2)))

print ('Minimum element in tuples 1,2: ' + 

     str(min(tuple1)) + ','  + str(min(tuple2)))

Run on IDE

Output:

Not the same

Maximum element in tuples 1,2: python,coder

Minimum element in tuples 1,2: geek,1

More Details for Python Training in Chennai with 100% Practical Call and Enroll Now @  +91 86818 84318