Python

one small gripe i have is that the repr¹ doesn't handle aliases (ie items with more than one bit set) that well , but tbh its not an easy problem

example to illustrate the problem :

class Foo(enum.Flag):
    A = auto()
    B = auto()
    C = auto()
    # no D
    AB = 0b0011
    CD = 0b1100

print(Foo.AB | Foo.C)  # <Foo.A|B|C: 7> NOT <Foo.AB|C: 7>
print(Foo.CD | Foo.A)  # <Foo.A|C|CD: 13> NOT <Foo.A|CD: 7>

its a minor thing but it annoys me a bit

[1]: the _name_ member , which is used by __repr__ , of an enum member is actually generated either when the individual enum class is created or when the value is first needed by _missing_ . also the docs call these names surrounded by single underscores "sunder" names