Hopeful fix for CPython issue 19765.
Hopeful fix for CPython issue 19765.

gsb-eng/asyncio,Martiusweb/asyncio,vxgmichel/asyncio,ajdavis/asyncio,vxgmichel/asyncio,fallen/asyncio,haypo/trollius,ajdavis/asyncio,manipopopo/asyncio,gsb-eng/asyncio,1st1/asyncio,manipopopo/asyncio,gvanrossum/asyncio,haypo/trollius,gvanrossum/asyncio,manipopopo/asyncio,gvanrossum/asyncio,1st1/asyncio,haypo/trollius,ajdavis/asyncio,jashandeep-sohi/asyncio,1st1/asyncio,jashandeep-sohi/asyncio,jashandeep-sohi/asyncio,Martiusweb/asyncio,vxgmichel/asyncio,fallen/asyncio,Martiusweb/asyncio,gsb-eng/asyncio,fallen/asyncio