bpo-38260: Add Docs on asyncio.run (GH-16337)
Add docs about return and raise exception on asyncio.run
https://bugs.python.org/issue38260
Automerge-Triggered-By: @asvetlov
diff --git a/Lib/asyncio/runners.py b/Lib/asyncio/runners.py
index 6c87747..904102b 100644
--- a/Lib/asyncio/runners.py
+++ b/Lib/asyncio/runners.py
@@ -21,6 +21,10 @@
It should be used as a main entry point for asyncio programs, and should
ideally only be called once.
+ Return a result of *coro* execution, or raise a RuntimeError
+ if `asyncio.run()`is called from a running event loop, or a ValueError
+ if `main` is not a courutine.
+
Example:
async def main():