Can proxy.py run in QPython?

[devcang]

Try to run on Android10, via QPython, got exception:

data/user/0/org.qpython.qpy3/files/bin/python3-android5 -m proxy <
Traceback (most recent call last):
File "/data/user/0/org.qpython.qpy3/files/lib/python36.zip/multiprocessing/synchronize.py", line 29, in
ImportError: cannot import name 'sem_unlink'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/data/user/0/org.qpython.qpy3/files/lib/python36.zip/runpy.py", line 183, in _run_module_as_main
File "/data/user/0/org.qpython.qpy3/files/lib/python36.zip/runpy.py", line 142, in _get_module_details
File "/data/user/0/org.qpython.qpy3/files/lib/python36.zip/runpy.py", line 109, in _get_module_details
File "/storage/emulated/0/qpython/lib/python3.6/site-packages/proxy/init.py", line 11, in
from .proxy import Proxy, main, sleep_loop, entry_point
File "/storage/emulated/0/qpython/lib/python3.6/site-packages/proxy/proxy.py", line 26, in
from .core.acceptor import AcceptorPool
File "/storage/emulated/0/qpython/lib/python3.6/site-packages/proxy/core/acceptor/init.py", line 15, in
from .pool import AcceptorPool
File "/storage/emulated/0/qpython/lib/python3.6/site-packages/proxy/core/acceptor/pool.py", line 24, in
from .acceptor import Acceptor
File "/storage/emulated/0/qpython/lib/python3.6/site-packages/proxy/core/acceptor/acceptor.py", line 21, in
import multiprocessing.synchronize
File "/data/user/0/org.qpython.qpy3/files/lib/python36.zip/multiprocessing/synchronize.py", line 34, in
ImportError: This platform lacks a functioning sem_open implementation, therefore, the required synchronization primitives needed will not function, see issue 3770.
1|:/sdcard/qpython/lib/python3.6/site-packages $

[abhinavsingh]

• Looks like certain semaphore implementation doesn't exists on this OS
• By default, proxy.py will run in multiprocessing mode
• Can you try to start it with --threaded flag which will avoid to use any multiprocessing.

PS: Even with --threaded proxy.py will internally span processes which will try to communicate with each other. That's where this seems to be failing. Please give it a try and let me know.

Thanks for trying this :)

[abhinavsingh]

@devcang Wondering if this helped?

Also, can you provide me link to some doc/steps so that I can reproduce the same. Iff we can make this work within Android, why not :)