I’m new to python. Is it possible to get the value of an Enum key from a variable key? Answer One of the many neat features of Python’s Enums is retrieval by name: and for the value:
Tag: enums
Is there a way to specify a default value for python enums?
Given the following enum: How can I specify a default value. I want to be able to do: and havemy_val be <MyEnum.A: 0> Is this possible? I’ve tried customizing __new__, __init__, __call__ but I can’t get it to work. Answer MyEnum(..) is handled by EnumMeta.__call__. You need to override that method:
Representation of all values in Flag enum
I would like to have a “ALL” flag in my python Flags enum for which holds true. I currently have: Because this enum might grow at any state of development I would like to have something like This does not work: Please note that this question currently only relates to python 3.6 or later. Answer There are a few ways
How to define enum values that are functions?
I have a situation where I need to enforce and give the user the option of one of a number of select functions, to be passed in as an argument to another function: I really want to achieve something like the following: So the following can be executed: Answer Your assumption is wrong. Values can be arbitrary, they are not
Python Enum, when and where to use?
Python 3.4.0 introduced enum, I’ve read the doc but still don’t know the usage of it. From my perspective, enum.Enum is an extended namedtuple type, which may not be true. So these are what I want to know about Enum: When and where to use Enum? Why do we need Enum? What are the advantages? What exactly is an Enum?
How to properly use the “choices” field option in Django
I’m reading the tutorial here: https://docs.djangoproject.com/en/1.5/ref/models/fields/#choices and i’m trying to create a box where the user can select the month he was born in. What I tried was Is this correct? I see that in the tutorial I was reading, they for some reason created variables first, like so Why did they create those variables? Also, the MONTHS_CHOICES is in