The syntax of enumerate()
is:
enumerate(iterable, start=0)
enumerate() Parameters
enumerate()
method takes two parameters:
- iterable - a sequence, an iterator, or objects that supports iteration
- start (optional) -
enumerate()
starts counting from this number. If start is omitted,0
is taken asstart
.
Return Value from enumerate()
enumerate()
method adds counter to an iterable and returns it. The returned object is a enumerate object.
You can convert enumerate objects to list and tuple using list() and tuple() method respectively.
Example 1: How enumerate() works in Python?
grocery = ['bread', 'milk', 'butter']
enumerateGrocery = enumerate(grocery)
print(type(enumerateGrocery))
# converting to list
print(list(enumerateGrocery))
# changing the default counter
enumerateGrocery = enumerate(grocery, 10)
print(list(enumerateGrocery))
Output
<class 'enumerate'> [(0, 'bread'), (1, 'milk'), (2, 'butter')] [(10, 'bread'), (11, 'milk'), (12, 'butter')]
Example 2: Looping Over an Enumerate object
grocery = ['bread', 'milk', 'butter']
for item in enumerate(grocery):
print(item)
print('\n')
for count, item in enumerate(grocery):
print(count, item)
print('\n')
# changing default start value
for count, item in enumerate(grocery, 100):
print(count, item)
Output
(0, 'bread') (1, 'milk') (2, 'butter') 0 bread 1 milk 2 butter 100 bread 101 milk 102 butter