Getting values from enum class where enum member names are known at run time in Python

Question

I am trying to get enum values from Enum class by getting enum member name runtime . I am trying in the following way:

from enum import Enum


    class EnumList(Enum):

        foo = 1
        bar = 2

enumMemberName=input("Enter enum member name")
enumValue=repr(EnumList.enumMemberName)          // **AttributeError: enumMemberName**
enumValue=repr(EnumList.foo)                     // **working fine**

please provide me with the alternate solution of above problem.

bad_coder · Accepted Answer · 2019-11-29 18:31:55Z

3

I think this is what you want:

edit: revised answer after OP feedback.

from enum import Enum


class EnumList(Enum):

    foo = 1
    bar = 2


enumMemberName=input("Enter enum member name")

enumMember = EnumList.foo
enumMemberTwo = EnumList[enumMemberName]

enumValue = EnumList[enumMemberName].value
enumValueStr = repr(EnumList[enumMemberName].value)

Quoting from the documentation for Enum

edited Nov 29, 2019 at 18:31

answered Nov 29, 2019 at 8:14

bad_coder

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2 Comments

tripti sinha Over a year ago

the above solution gives output in the following format:<EnumList.foo: 1> but the expected output is : 1

bad_coder Over a year ago

@triptisinha answer was revised.

Ethan Furman · Accepted Answer · 2019-11-29 18:03:09Z

2

Your expectations are wrong. Asking an Enum for one of its members is going to give you that member:

>>> enumList[enumMemberName]   # if name is 'foo'  (also, notice square brackets)
<EnumList.foo: 1>              # expected output

If you specifically want the value, you have to ask for it:

>>> enumList[enumMemberName].value   # if name is 'foo'
1

answered Nov 29, 2019 at 18:03

Ethan Furman

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