This guide deals with the Python enumerate function and it’s uses, complete with several examples.
The Python enumerate is a useful function to have with dealing with sequences like Lists or Tuples. The enumerate() takes as input a sequence, iterates over it including a counter for every element, returning it as an enumerate object. The benefit of having an enumerate object is that you can place it in a loop to iterated over.
Syntax
enumerate(iterable, start)Parameters
- Iterable: any object that can be iterated over.
- Start: Index value from which the counter is to be started, by default, value is 0.
Example Set 1
Some basic examples of us passing sequences into the enumerate function and printing the output. You have to use the list function on the returned enumerate object to get a readable version.
X = "String"
print(list(enumerate(X)))
X = [5, 7, 4, 2, 4, 7]
print(list(enumerate(X)))
X = ["Apple", "Banana", "Cucumber"]
print(list(enumerate(X)))
X = { 1: "Hat", 2 : "Cat", 3 : "Mat"}
print(list(enumerate(X)))
[(0, 'S'), (1, 't'), (2, 'r'), (3, 'i'), (4, 'n'), (5, 'g')]
[(0, 5), (1, 7), (2, 4), (3, 2), (4, 4), (5, 7)]
[(0, 'Apple'), (1, 'Banana'), (2, 'Cucumber')]
[(0, 1), (1, 2), (2, 3)]Example Set 2
In this example set we will be iterating over the enumerate objects, printing out their contents.
X = "String"
ob = enumerate(X)
for x in ob:
print(x)
print("--------")
X = ["Apple", "Banana", "Cucumber"]
ob = enumerate(X)
for x,y in ob:
print(x,y)
(0, 'S')
(1, 't')
(2, 'r')
(3, 'i')
(4, 'n')
(5, 'g')
--------
0 Apple
1 Banana
2 CucumberThis marks the end of the Python enumerate Function Article. Any suggestions or contributions for CodersLegacy are more than welcome. Any questions can be asked in the comments section below.
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