Repository navigation
inspect.getgeneratorstate() fails on _GeneratorWrapper with AttributeError: gi_suspended #143999
Description
Bug report
Bug description:
When a generator function decorated with @types.coroutine returns a generator, calling inspect.getgeneratorstate() on the resulting _GeneratorWrapper object raises an AttributeError. This happens because _GeneratorWrapper does not have the gi_suspended attribute expected by inspect.getgeneratorstate().
Python script repro
import inspect
import types
def legacy_stepper():
yield 1
yield 2
@types.coroutine
def await_legacy():
return legacy_stepper()
task = await_legacy()
print("awaitable type:", type(task))
print("state:", inspect.getgeneratorstate(task))Wrong behavior
d:\MyCode\cpython\PCbuild\amd64>python_d.exe py_suspended.py
awaitable type: <class 'types._GeneratorWrapper'>
Traceback (most recent call last):
File "d:\MyCode\cpython\PCbuild\amd64\py_suspended.py", line 16, in <module>
print("state:", inspect.getgeneratorstate(task))
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "d:\MyCode\cpython\Lib\inspect.py", line 1817, in getgeneratorstate
if generator.gi_suspended:
^^^^^^^^^^^^^^^^^^^^^^
AttributeError: '_GeneratorWrapper' object has no attribute 'gi_suspended'
Potential solutions
Add gi_suspended properties to _GeneratorWrapper that delegate to the wrapped generator.
CPython versions tested on:
CPython main branch
Operating systems tested on:
Windows
Activity
gh-143999: Fix: handle suspended state on types.coroutine wrappers (G…
pythongh-143999: Fix: handle suspended state on types.coroutine wrapp…
pythongh-143999: Fix: handle suspended state on types.coroutine wrapp…
[3.13] gh-143999: Fix: handle suspended state on types.coroutine wrap…
[3.14] gh-143999: Fix: handle suspended state on types.coroutine wrap…
pythongh-143999: Fix: handle suspended state on types.coroutine wrapp…