In this article, we will discuss different ways to iterate the list of tuples in Python.
It can be done in these ways:
- Using Loop.
- Using enumerate().
Method 1: Using Loop
Here we are going to form a list of tuples using for loop.
# create a list of tuples with student # details name = [( 'sravan' , 7058 , 98.45 ),
( 'ojaswi' , 7059 , 90.67 ),
( 'bobby' , 7060 , 78.90 ),
( 'rohith' , 7081 , 67.89 ),
( 'gnanesh' , 7084 , 98.01 )]
# iterate using for loop for x in name:
# iterate in each tuple element
for y in x:
print (y)
print ()
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Output:
sravan 7058 98.45 ojaswi 7059 90.67 bobby 7060 78.9 rohith 7081 67.89 gnanesh 7084 98.01
Method 2: Using enumerate()
Here we are going to use enumerate() function to Iterate the list of tuples. A lot of times when dealing with iterators, we also get a need to keep a count of iterations. Python eases the programmers’ task by providing a built-in function enumerate() for this task. Enumerate() method adds a counter to an iterable and returns it in a form of enumerate object. This enumerate object can then be used directly in for loops or be converted into a list of tuples using list() method.
Syntax: enumerate(iterable, start=0)
Parameters:
- Iterable: any object that supports iteration
- Start: the index value from which the counter is to be started, by default it is 0
# create a list of tuples with student # details name = [( 'sravan' , 7058 , 98.45 ),
( 'ojaswi' , 7059 , 90.67 ),
( 'bobby' , 7060 , 78.90 ),
( 'rohith' , 7081 , 67.89 ),
( 'gnanesh' , 7084 , 98.01 )]
l = []
# iterate using index with enumerate function for index, tuple in enumerate (name):
# access through index
# by appending to list
l.append(name[index])
# iterate through the list for x in l:
for y in x:
print (y)
print ()
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Output:
sravan 7058 98.45 ojaswi 7059 90.67 bobby 7060 78.9 rohith 7081 67.89 gnanesh 7084 98.01