mirror of
https://github.com/chanzuckerberg/cellxgene.git
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4b96b3a635
* WIP * add --developer; fix incompatibility of --port and --debug * put REST tests on separate ports * PR review
27 lines
848 B
Python
27 lines
848 B
Python
import contextlib
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import errno
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import socket
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def find_available_port(host, port=5005):
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"""
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Helper method to find open port on host. Tries 5000 ports incremented from the specified port
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"""
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# Takes approx 2 seconds to do a scan of 5000 ports on my laptop
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num_ports_to_try = 5000
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for port_to_try in range(port, port + num_ports_to_try):
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if is_port_available(host, port_to_try):
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return port_to_try
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raise socket.error(errno.EADDRINUSE, f"No port in range {port} - {port + num_ports_to_try - 1} available.")
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def is_port_available(host, port):
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is_available = False
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with contextlib.closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
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try:
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s.bind((host, port))
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is_available = True
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except socket.error:
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pass
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return is_available
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