strange behavior with vec4 (ghost attributes)

[warrenelrod]

Environment

• GLM version: 2.7.1
• Python version: 3.11.5
• Operating System: win11

I am inheriting the glm types into classes to extend functionality like this:

class Vec4(glm.vec4):
  def __init__(self, x, y, z, w):
    super().__init__(x, y, z, w)
  def ceil(self):
    self.xyzw = glm.ceil(self).xyzw
    return self
  def normalize(self):
    self.xyzw = glm.normalize(self).xyzw
    return self

v = Vec4(1.2, 2.1, 3.9, 4.5)

print(v)
v.ceil().normalize()
print(v)

-> Vec4(          1.2,          2.1,          3.9,          4.5 )
-> Vec4(     0.272166,     0.408248,     0.544331,     0.680414 )

The problem I run into is this:

print(glm.vec1().abs)
-> AttributeError: 'glm.vec1' object has no attribute 'abs'

print(glm.vec2().abs)
-> AttributeError: 'glm.vec2' object has no attribute 'abs'

print(glm.vec3().abs)
-> AttributeError: 'glm.vec3' object has no attribute 'abs'

print(glm.vec4().abs)
-> vec3(            0,            0,            0 )

Calling glm.vec4() seems to return an object carrying some dirty laundry.

Note: "abs" is not an attribute of glm.vec1, 2, 3... or vec4

[warrenelrod]

After reading into the the glm cpp code i realize that it is from swizzling