Hướng dẫn python3 iterate over enum
Write a Python program to iterate over an enum class and display individual member and their value. Nội dung chính Sample Solution:- Python Code:
Sample Output: Afghanistan = 93 Albania = 355 Algeria = 213 Andorra = 376 Angola = 244 Antarctica = 672 Flowchart: Python Code Editor: Contribute your code and comments through Disqus. Previous: Write a Python program to create an Enum object and display a
member name and value. What is the difficulty level of this exercise? Test your Programming skills with w3resource's quiz. Python: Tips of the DayChecking whether all elements in the sequence are Truthful: >>> all(a % 2==0 for a in range(0,10,2)) True
I'm using the backported Enum functionality from python 3.4 with python 2.7:
According to the documentation for Enums in python 3 (https://docs.python.org/3/library/enum.html#creating-an-enum), "Enumerations support iteration, in definition order". However, iteration is not happening in order for me:
Am I misunderstanding something, or is iteration in definition order just not supported in the backported versions of Enums yet? Assuming the latter, is there an easy way to force it to happen in order? asked Sep 22, 2014 at 19:58 I found the answer here: https://pypi.python.org/pypi/enum34/1.0. For python <3.0, you need to specify an __order__ attribute:
answered Sep 22, 2014 at 20:01 TroyTroy 20.6k20 gold badges71 silver badges101 bronze badges 3 use
to define the order of enums for python version less than 3 . It is not necessary in python3 but make sure the order which is supplied same as declared order otherwise it will give error:
Output:
answered Feb 10 at 6:54 devpdevp 2,0242 gold badges13 silver badges23 bronze badges Can you iterate through enum?Enums don't have methods for iteration, like forEach() or iterator(). Instead, we can use the array of the Enum values returned by the values() method. Is enum iterable Python?Example 3: Enumerations are iterable. They can be iterated using loops. In this example, we will use for loop to print all the members of the Enum class. How do you use an enum in a for loop in Python?Enumerate() in Python This enumerated object can then be used directly for loops or converted into a list of tuples using the list() method. Parameters: Iterable: any object that supports iteration. Start: the index value from which the counter is to be started, by default it is 0. Can enum have multiple values Python?Enums can't have multiple value per name. |