PythonObject @@? Thing -- whether a python object has an attribute

• Operator: @@?

• Usage:

  x @@? y

• Inputs:
  • x, a python object,
  • y, a thing,
• Outputs:
  • a Boolean value, whether y is an attribute of x;

i1 : foo = toPython "Hello, world!"

o1 = Hello, world!

o1 : PythonObject of class str

i2 : foo@@?upper

o2 = true

i3 : foo@@?bar

o3 = false