html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,issue,performed_via_github_app
https://github.com/simonw/datasette/issues/2078#issuecomment-1563308919,https://api.github.com/repos/simonw/datasette/issues/2078,1563308919,IC_kwDOBm6k_c5dLjN3,9599,2023-05-25T18:08:34Z,2023-05-25T18:08:34Z,OWNER,"After much fiddling this seems to work:
```python
import asyncio, types
def is_async_callable(obj):
if not callable(obj):
raise ValueError(""Object is not callable"")
if isinstance(obj, types.FunctionType):
return asyncio.iscoroutinefunction(obj)
if hasattr(obj, '__call__'):
return asyncio.iscoroutinefunction(obj.__call__)
raise ValueError(""Not a function and has no __call__ attribute"")
```
Tested like so:
```python
class AsyncClass:
async def __call__(self):
pass
class NotAsyncClass:
def __call__(self):
pass
class ClassNoCall:
pass
async def async_func():
pass
def non_async_func():
pass
for thing in (AsyncClass(), NotAsyncClass(), ClassNoCall(), async_func, non_async_func):
try:
print(thing, is_async_callable(thing))
except Exception as ex:
print(thing, ex)
```
```
<__main__.AsyncClass object at 0x106c32150> True
<__main__.NotAsyncClass object at 0x106c32390> False
<__main__.ClassNoCall object at 0x106c32750> Object is not callable
True
False
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1726236847,