On 3/22/2020 11:37 PM, DL Neil via Python-list wrote:
On 23/03/20 3:32 PM, Paulo da Silva wrote:
Às 02:18 de 23/03/20, Paulo da Silva escreveu:
Hi!
Olá,
Suppose a class C.
I want something like this:
class C:
KA=0
KB=1
KC=2
...
Kn=n
def __init__ ...
...
These constants come from an enum in a .h (header of C file).
They are many and may change from time to time.
Is there a way to somehow define them from inside __init__ giving for
example a list of names as strings?
There is an additional problem: C is not recognized inside __init__!
Please read the PSL docs carefully, because Python's enums seem to
differ from those in other languages - sometimes in significant ways,
and sometimes in a subtle manner!
I have been asking similar questions recently - particularly wanting to
(also) use the "strings", because of the effort of upgrading many
modules of code at the same time (the manual, or was it the PEP(?)
refers to the need to upgrade the PSL to use enums, and to the effort
that might cost - I suggest there has been little/v.slow take-up, but
then keeping the PSL updated is a subject of a great many conversations,
elsewhere).
Python's enums cannot be changed. Once set, C.KA cannot be changed to 1
I am not sure what you are saying. The OP's class is not an enum in the
enum module sense. Class attributues are usually mutable.
>>> class C:
K = 0
>>> C.K = 1
>>> C.K
1
--
Terry Jan Reedy
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