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pallectrum/electrum/scripts/get_history.py

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#!/usr/bin/env python3
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import sys
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import asyncio
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from electrum import bitcoin
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from electrum.network import Network
from electrum.util import json_encode, print_msg, create_and_start_event_loop, log_exceptions
from electrum.simple_config import SimpleConfig
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try:
addr = sys.argv[1]
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except Exception:
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print("usage: get_history <bitcoin_address>")
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sys.exit(1)
config = SimpleConfig()
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loop, stopping_fut, loop_thread = create_and_start_event_loop()
network = Network(config)
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network.start()
@log_exceptions
async def f():
try:
sh = bitcoin.address_to_scripthash(addr)
hist = await network.get_history_for_scripthash(sh)
print_msg(json_encode(hist))
finally:
stopping_fut.set_result(1)
asyncio.run_coroutine_threadsafe(f(), loop)
scripts: fix "cannot schedule new futures after interpreter shutdown" - 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 ```
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while loop_thread.is_alive():
loop_thread.join(1)