Cannot use docker with eventlet since #2865 #3131
Description
Before #2865, it was possible to use docker-py with a eventlet-based project.
However, after the inclusion of a tests for using poll(), i now have errors, see below.
This is expected: eventlet removes poll function on the select module on purpose. See eventlet/eventlet#608 (comment)
So instead of checking if the platform is win32, we should check if the select module have a poll method. Which also make it more cross-platform compatible as per select.poll documentation (https://docs.python.org/3/library/select.html#select.poll - Not supported by all operating systems, but not mentionning win32 exactly.)
.venv/lib/python3.11/site-packages/docker/utils/socket.py:156: in consume_socket_output [64/1813]
return bytes().join(frames)
.venv/lib/python3.11/site-packages/docker/api/client.py:422: in <genexpr>
gen = (data for (_, data) in gen)
.venv/lib/python3.11/site-packages/docker/utils/socket.py:113: in frames_iter_no_tty
(stream, n) = next_frame_header(socket)
.venv/lib/python3.11/site-packages/docker/utils/socket.py:85: in next_frame_header
data = read_exactly(socket, 8)
.venv/lib/python3.11/site-packages/docker/utils/socket.py:70: in read_exactly
next_data = read(socket, n - len(data))
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
socket = <socket.SocketIO object at 0x7f0f24f04c10>, n = 8
def read(socket, n=4096):
"""
Reads at most n bytes from socket
"""
recoverable_errors = (errno.EINTR, errno.EDEADLK, errno.EWOULDBLOCK)
if not isinstance(socket, NpipeSocket):
if sys.platform == 'win32':
# Limited to 1024
select.select([socket], [], [])
else:
> poll = select.poll()
E AttributeError: module 'select' has no attribute 'poll'
.venv/lib/python3.11/site-packages/docker/utils/socket.py:39: AttributeError