def assert_ip(ip):
port = reserve(ip)
# show that we can't bind to it without SO_REUSEADDR
error = bind_naive(ip, port)
assert error and error.errno == errno.EADDRINUSE, error
# show that we *can* bind to it without SO_REUSEADDR, after release
sock = bind_reuse(ip, port)
sname = sock.getsockname()
assert sname == (ip, port), (sname, port)
def pypi_port():
yield reserve()
def pypi_port():
yield reserve()
