Add option to prevent default type translations about pyodide HOT 4 OPEN

Does this work?

const enumValue = pyodide.runPython(`
   from pyodide.ffi import create_proxy
   create_proxy(Foo.bar)
`);

from pyodide.

Unfortunately, no; it is still coming out as an integer. :-(

Looking closer at the library I'm calling, they have implemented a enum.IntEnum, which should be convertible to and from an integer value, and so I'm pretty sure the default behavior of pyodide would be OK. However, in the function I'm calling they're doing an isinstance test so I still need the actual enum object to make it work.

That said, I have found a workaround I think is OK:

const locals = {
  the_magic_object: pyproxyObjectThatTookALotOfWorkToCreate,
  the_enum_int_value: functionThatFiguresOutTheRightValue(),
  ...allTheOtherVarialblesNeededToCallTheFunction
}
const script = `
  from bar import foo
  foo_enum = Foo(the_enum_int_value)
  the_magic_object.magic_function(foo_enum, ...)
`
pyodide.runPython(script, { locals })

It still may be worthwhile being able to disable translations at times, but I'm not blocked until that is decided and figured out.

Thanks!

from pyodide.

Seems to work for me.

const v = pyodide.runPython(`
   from pyodide.ffi import create_proxy
   from enum import Enum
   class A(Enum):
      v = 1

create_proxy(A.v, roundtrip=False)
`);
const  f = pyodide.runPython(`
   def f(x):
      print("x is A.v?", x is A.v)
   f
`);

f(v)

Prints x is A.v? True

from pyodide.

I'll have to try again with the roundtrip=False option.

from pyodide.