mirror of
https://github.com/python/cpython.git
synced 2024-11-24 10:24:35 +08:00
126 lines
3.3 KiB
Python
126 lines
3.3 KiB
Python
import ast
|
|
import asyncio
|
|
import code
|
|
import concurrent.futures
|
|
import inspect
|
|
import sys
|
|
import threading
|
|
import types
|
|
import warnings
|
|
|
|
from . import futures
|
|
|
|
|
|
class AsyncIOInteractiveConsole(code.InteractiveConsole):
|
|
|
|
def __init__(self, locals, loop):
|
|
super().__init__(locals)
|
|
self.compile.compiler.flags |= ast.PyCF_ALLOW_TOP_LEVEL_AWAIT
|
|
|
|
self.loop = loop
|
|
|
|
def runcode(self, code):
|
|
future = concurrent.futures.Future()
|
|
|
|
def callback():
|
|
global repl_future
|
|
global repl_future_interrupted
|
|
|
|
repl_future = None
|
|
repl_future_interrupted = False
|
|
|
|
func = types.FunctionType(code, self.locals)
|
|
try:
|
|
coro = func()
|
|
except SystemExit:
|
|
raise
|
|
except KeyboardInterrupt as ex:
|
|
repl_future_interrupted = True
|
|
future.set_exception(ex)
|
|
return
|
|
except BaseException as ex:
|
|
future.set_exception(ex)
|
|
return
|
|
|
|
if not inspect.iscoroutine(coro):
|
|
future.set_result(coro)
|
|
return
|
|
|
|
try:
|
|
repl_future = self.loop.create_task(coro)
|
|
futures._chain_future(repl_future, future)
|
|
except BaseException as exc:
|
|
future.set_exception(exc)
|
|
|
|
loop.call_soon_threadsafe(callback)
|
|
|
|
try:
|
|
return future.result()
|
|
except SystemExit:
|
|
raise
|
|
except BaseException:
|
|
if repl_future_interrupted:
|
|
self.write("\nKeyboardInterrupt\n")
|
|
else:
|
|
self.showtraceback()
|
|
|
|
|
|
class REPLThread(threading.Thread):
|
|
|
|
def run(self):
|
|
try:
|
|
banner = (
|
|
f'asyncio REPL {sys.version} on {sys.platform}\n'
|
|
f'Use "await" directly instead of "asyncio.run()".\n'
|
|
f'Type "help", "copyright", "credits" or "license" '
|
|
f'for more information.\n'
|
|
f'{getattr(sys, "ps1", ">>> ")}import asyncio'
|
|
)
|
|
|
|
console.interact(
|
|
banner=banner,
|
|
exitmsg='exiting asyncio REPL...')
|
|
finally:
|
|
warnings.filterwarnings(
|
|
'ignore',
|
|
message=r'^coroutine .* was never awaited$',
|
|
category=RuntimeWarning)
|
|
|
|
loop.call_soon_threadsafe(loop.stop)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
loop = asyncio.new_event_loop()
|
|
asyncio.set_event_loop(loop)
|
|
|
|
repl_locals = {'asyncio': asyncio}
|
|
for key in {'__name__', '__package__',
|
|
'__loader__', '__spec__',
|
|
'__builtins__', '__file__'}:
|
|
repl_locals[key] = locals()[key]
|
|
|
|
console = AsyncIOInteractiveConsole(repl_locals, loop)
|
|
|
|
repl_future = None
|
|
repl_future_interrupted = False
|
|
|
|
try:
|
|
import readline # NoQA
|
|
except ImportError:
|
|
pass
|
|
|
|
repl_thread = REPLThread()
|
|
repl_thread.daemon = True
|
|
repl_thread.start()
|
|
|
|
while True:
|
|
try:
|
|
loop.run_forever()
|
|
except KeyboardInterrupt:
|
|
if repl_future and not repl_future.done():
|
|
repl_future.cancel()
|
|
repl_future_interrupted = True
|
|
continue
|
|
else:
|
|
break
|