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@pbk20191
Last active October 20, 2024 13:48
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python async console inputs
import asyncio
import os
import sys
from typing import AsyncGenerator
from contextlib import closing
async def console_input() -> AsyncGenerator[str, None]:
loop = asyncio.get_event_loop()
reader = asyncio.StreamReader(loop=loop)
with os.fdopen(os.dup(sys.stdin.fileno()), mode='rt+') as file_ref:
transport, reader_protocol = await loop.connect_read_pipe(
protocol_factory=lambda : asyncio.StreamReaderProtocol(stream_reader=reader, loop=loop),
pipe=file_ref
)
with closing(transport):
async for buffer in reader:
yield buffer.decode()
import asyncio
import asyncio.windows_utils
import msvcrt
import os
import sys
from ctypes import WinError, windll
from typing import AsyncGenerator
kernel32 = windll.kernel32
async def console_input() -> AsyncGenerator[str, None]:
loop = asyncio.get_event_loop()
running = False
with os.fdopen(fd=os.dup(sys.stdin.fileno()), mode='rt+') as reader:
try:
while reader.readable():
running = True
next_line = await loop.run_in_executor(None, reader.readline, -1)
running = False
if next_line is None or next_line == '':
return
yield next_line.rstrip()
finally:
result = -1
if running:
result = kernel32.CancelIoEx(msvcrt.get_osfhandle(reader.fileno()), None)
if result == 0:
raise WinError()
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