https://github.com/python/cpython/commit/35d96241091f5bd477c942e0f1b174c0bdae5596 commit: 35d96241091f5bd477c942e0f1b174c0bdae5596 branch: 3.13 author: Miss Islington (bot) <[email protected]> committer: asvetlov <[email protected]> date: 2024-10-15T13:37:59+02:00 summary:
[3.13] gh-124594: Create and reuse the same context for the entire asyncio REPL session (GH-124595) (#124848) gh-124594: Create and reuse the same context for the entire asyncio REPL session (GH-124595) (cherry picked from commit 67e01a430f4ecfcb540d6a29b347966ff4e53454) Co-authored-by: Bartosz Sławecki <[email protected]> Co-authored-by: Andrew Svetlov <[email protected]> files: A Misc/NEWS.d/next/Library/2024-09-26-13-43-39.gh-issue-124594.peYhsP.rst M Lib/asyncio/__main__.py M Lib/test/test_repl.py diff --git a/Lib/asyncio/__main__.py b/Lib/asyncio/__main__.py index 5120140e061691..95c636f9e02866 100644 --- a/Lib/asyncio/__main__.py +++ b/Lib/asyncio/__main__.py @@ -1,6 +1,7 @@ import ast import asyncio import concurrent.futures +import contextvars import inspect import os import site @@ -22,6 +23,7 @@ def __init__(self, locals, loop): self.compile.compiler.flags |= ast.PyCF_ALLOW_TOP_LEVEL_AWAIT self.loop = loop + self.context = contextvars.copy_context() def runcode(self, code): global return_code @@ -55,12 +57,12 @@ def callback(): return try: - repl_future = self.loop.create_task(coro) + repl_future = self.loop.create_task(coro, context=self.context) futures._chain_future(repl_future, future) except BaseException as exc: future.set_exception(exc) - loop.call_soon_threadsafe(callback) + loop.call_soon_threadsafe(callback, context=self.context) try: return future.result() diff --git a/Lib/test/test_repl.py b/Lib/test/test_repl.py index 7a7285a1a2fcfd..e764e60560db23 100644 --- a/Lib/test/test_repl.py +++ b/Lib/test/test_repl.py @@ -291,5 +291,42 @@ def f(): self.assertEqual(traceback_lines, expected_lines) +class TestAsyncioREPLContextVars(unittest.TestCase): + def test_toplevel_contextvars_sync(self): + user_input = dedent("""\ + from contextvars import ContextVar + var = ContextVar("var", default="failed") + var.set("ok") + """) + p = spawn_repl("-m", "asyncio") + p.stdin.write(user_input) + user_input2 = dedent(""" + print(f"toplevel contextvar test: {var.get()}") + """) + p.stdin.write(user_input2) + output = kill_python(p) + self.assertEqual(p.returncode, 0) + expected = "toplevel contextvar test: ok" + self.assertIn(expected, output, expected) + + def test_toplevel_contextvars_async(self): + user_input = dedent("""\ + from contextvars import ContextVar + var = ContextVar('var', default='failed') + """) + p = spawn_repl("-m", "asyncio") + p.stdin.write(user_input) + user_input2 = "async def set_var(): var.set('ok')\n" + p.stdin.write(user_input2) + user_input3 = "await set_var()\n" + p.stdin.write(user_input3) + user_input4 = "print(f'toplevel contextvar test: {var.get()}')\n" + p.stdin.write(user_input4) + output = kill_python(p) + self.assertEqual(p.returncode, 0) + expected = "toplevel contextvar test: ok" + self.assertIn(expected, output, expected) + + if __name__ == "__main__": unittest.main() diff --git a/Misc/NEWS.d/next/Library/2024-09-26-13-43-39.gh-issue-124594.peYhsP.rst b/Misc/NEWS.d/next/Library/2024-09-26-13-43-39.gh-issue-124594.peYhsP.rst new file mode 100644 index 00000000000000..ac48bd84930745 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2024-09-26-13-43-39.gh-issue-124594.peYhsP.rst @@ -0,0 +1 @@ +All :mod:`asyncio` REPL prompts run in the same :class:`context <contextvars.Context>`. Contributed by Bartosz Sławecki. _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-checkins.python.org/ Member address: [email protected]
