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26 lines
574 B
Python
26 lines
574 B
Python
import secrets
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import socket
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from typing import Set
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recent_ports: Set[int] = set()
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def find_available_listen_port(name: str = "free") -> int:
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global recent_ports
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while True:
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port = secrets.randbelow(0xFFFF - 1024) + 1024
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if port in recent_ports:
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continue
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with socket.socket() as s:
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try:
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s.bind(("127.0.0.1", port))
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except OSError:
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recent_ports.add(port)
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continue
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recent_ports.add(port)
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print(f"{name} port: {port}")
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return port
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