xdis.stack_effect is not exposed properly

[Quinntyx]

Description

xdis.stack_effect is implemented in xdis.std, but is missing from module-level exports, so it cannot be accessed at xdis.stack_effect. This breaks parity with dis, which has dis.stack_effect exposed externally.

How to Reproduce

>>> import xdis
>>> xdis.stack_effect
Traceback (most recent call last):
  File "<python-input-1>", line 1, in <module>
    xdis.stack_effect
AttributeError: module 'xdis' has no attribute 'stack_effect'
>>> import dis
>>> dis.stack_effect
<built-in function stack_effect>
>>> 

Expected behavior

Accessing xdis.stack_effect should give the stack effect function.

Environment

Using xdis installed from git main branch (via pip install git+https://github.com/rocky/python-xdis.git).

Running on Python 3.15.0b1+.

Workarounds

Can access from _std_api directly.

>>> from xdis.std import _std_api
>>> _std_api.stack_effect
<bound method _StdApi.stack_effect of <xdis.std._StdApi object at 0x7f18fcb17cb0>>
>>> 

Priority

Not particularly important, the workaround is very easy. However, it does break any uses of xdis for drop-in replacement of dis if the stack_effect function is needed.

[rocky]

@Quinntyx Are you up for fixing? Seems like a retty simple thing to that import to inside xdis.__init__ and include "stack_effect" to the __all__ array there.

[Quinntyx]

Yeah, I can PR it. I'm working on something else at the moment though so I might not get to it today.

[rocky]

Yeah, I can PR it. I'm working on something else at the moment though so I might not get to it today.

No hurry.