Python | Split tuple into groups of n

Given a tuple, the task is to divide it into smaller groups of n. Let’s discuss a few methods to accomplish a given task.
Method #1: Using enumerate and range function

Python3

# Python code to demonstrate
# how to split tuple
# into the group of k-tuples

# initialising tuple
ini_tuple = (1, 2, 3, 4, 8, 12, 3, 34,
             67, 45, 1, 1, 43, 65, 9, 10)

# printing initial tuple
print ("initial list", str(ini_tuple))

# code to group
# tuple into size 4 tuples
res = tuple(ini_tuple[x:x + 4]
      for x in range(0, len(ini_tuple), 4))

# printing result
print ("resultant tuples", str(res))

Output:

initial list (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10) resultant tuples ((1, 2, 3, 4), (8, 12, 3, 34), (67, 45, 1, 1), (43, 65, 9, 10))

Method #2: Using enumerate and mod operator

Python3

# Python code to demonstrate
# how to split tuple
# into the group of k-tuples

# initialising tuple
ini_tuple = (1, 2, 3, 4, 8, 12, 3, 34,
             67, 45, 1, 1, 43, 65, 9, 10)

# printing initial tuple
print ("initial list", str(ini_tuple))

# code to group
# tuple into size 4 tuples
res = tuple(ini_tuple[n:n + 4] for n, i in enumerate(ini_tuple)
                                                 if n % 4 == 0)

# printing result
print ("resultant tuples", str(res))

Output:

initial list (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10) resultant tuples ((1, 2, 3, 4), (8, 12, 3, 34), (67, 45, 1, 1), (43, 65, 9, 10))

Method #3: Using itertools recipes

Python3

# Python code to demonstrate
# how to split tuple
# into the group of k-tuples

# function to group tuple into groups of 4
def grouper(n, iterable):
    args = [iter(iterable)] * n
    return zip(*args)


# initialising tuple
ini_tuple = (1, 2, 3, 4, 8, 12, 3, 34,
             67, 45, 1, 1, 43, 65, 9, 10)

# printing initial tuple
print ("initial list", str(ini_tuple))

# code to group
# tuple into size 4 tuples
res = tuple(grouper(4, ini_tuple))

# printing result
print ("resultant tuples", str(res))

Output:

initial list (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10) resultant tuples ((1, 2, 3, 4), (8, 12, 3, 34), (67, 45, 1, 1), (43, 65, 9, 10))

Method #4: Using zip

Here is another approach using the zip function:

Python3

# initializing tuple
ini_tuple = (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10)

# printing initial tuple
print("initial list", str(ini_tuple))

# code to group tuple into groups of 4
res = tuple(zip(*[iter(ini_tuple)]*4))

# printing result
print("resultant tuples", str(res))

Output

initial list (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10)
resultant tuples ((1, 2, 3, 4), (8, 12, 3, 34), (67, 45, 1, 1), (43, 65, 9, 10))

Time complexity: O(n)

Auxiliary Space: O(n)