7611d4c3b3
- looks like around python3.9, they changed it so that
if we don't block on the main thread, it starts to shut things down
- polling thread.join() makes Ctrl+C work. kind of.
```
$ ./electrum/scripts/txradar.py 6bde84a981e72573666fcc51c81ec3f8f4a813709bf16451dce3f106a114d392
Exception in run: RuntimeError('cannot schedule new futures after interpreter shutdown')
Traceback (most recent call last):
File "/home/user/wspace/electrum/electrum/util.py", line 1218, in wrapper
return await func(*args, **kwargs)
File "/home/user/wspace/electrum/electrum/interface.py", line 649, in wrapper_func
return await func(self, *args, **kwargs)
File "/home/user/wspace/electrum/electrum/interface.py", line 675, in run
await self.open_session(ssl_context=ssl_context)
File "/home/user/wspace/electrum/electrum/interface.py", line 872, in open_session
async with _RSClient(
File "/home/user/.local/lib/python3.10/site-packages/aiorpcx/rawsocket.py", line 167, in __aenter__
_transport, protocol = await self.create_connection()
File "/home/user/wspace/electrum/electrum/interface.py", line 285, in create_connection
return await super().create_connection()
File "/home/user/.local/lib/python3.10/site-packages/aiorpcx/rawsocket.py", line 163, in create_connection
return await connector.create_connection(
File "/usr/lib/python3.10/asyncio/base_events.py", line 1036, in create_connection
infos = await self._ensure_resolved(
File "/usr/lib/python3.10/asyncio/base_events.py", line 1418, in _ensure_resolved
return await loop.getaddrinfo(host, port, family=family, type=type,
File "/usr/lib/python3.10/asyncio/base_events.py", line 863, in getaddrinfo
return await self.run_in_executor(
File "/usr/lib/python3.10/asyncio/base_events.py", line 821, in run_in_executor
executor.submit(func, *args), loop=self)
File "/usr/lib/python3.10/concurrent/futures/thread.py", line 169, in submit
raise RuntimeError('cannot schedule new futures after '
RuntimeError: cannot schedule new futures after interpreter shutdown
```
32 lines
1009 B
Python
Executable File
32 lines
1009 B
Python
Executable File
#!/usr/bin/env python3
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import asyncio
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from electrum.network import filter_protocol, Network
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from electrum.util import create_and_start_event_loop, log_exceptions
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from electrum.blockchain import hash_raw_header
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from electrum.simple_config import SimpleConfig
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config = SimpleConfig()
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loop, stopping_fut, loop_thread = create_and_start_event_loop()
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network = Network(config)
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network.start()
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@log_exceptions
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async def f():
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try:
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peers = await network.get_peers()
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peers = filter_protocol(peers)
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results = await network.send_multiple_requests(peers, 'blockchain.headers.subscribe', [])
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for server, header in sorted(results.items(), key=lambda x: x[1].get('height')):
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height = header.get('height')
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blockhash = hash_raw_header(bytes.fromhex(header.get('hex')))
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print(server, height, blockhash)
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finally:
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stopping_fut.set_result(1)
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asyncio.run_coroutine_threadsafe(f(), loop)
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while loop_thread.is_alive():
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loop_thread.join(1)
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