Importing bfxapi results in a segfault

[jazarija]

I'm submitting a...

• [x ] bug report;
• feature request;
• documentation change;

What is the expected behaviour?

What is the current behaviour?

When importing bfxapi, I get a segmentation fault

Python 3.12.3 (main, Apr 10 2024, 05:33:47) [GCC 13.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import bfxap
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'bfxap'
>>> import bfxapi
Segmentation fault (core dumped)

I've tried to isolate this issue by running different environments and different versions of the required libraries, but with no luck. Interestingly if I install the very latest beta version of Python 3.13 importing bfxapi raises exceptions

Python 3.13.0b2 (main, Jun  8 2024, 19:38:38) [GCC 13.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import bfxapi
Traceback (most recent call last):
  File "<python-input-0>", line 1, in <module>
    import bfxapi
  File "/home/azi/.local/lib/python3.13/site-packages/bfxapi/__init__.py", line 1, in <module>
    from ._client import PUB_REST_HOST, PUB_WSS_HOST, REST_HOST, WSS_HOST, Client
  File "/home/azi/.local/lib/python3.13/site-packages/bfxapi/_client.py", line 6, in <module>
    from bfxapi.websocket import BfxWebSocketClient
  File "/home/azi/.local/lib/python3.13/site-packages/bfxapi/websocket/__init__.py", line 1, in <module>
    from ._client import BfxWebSocketClient
  File "/home/azi/.local/lib/python3.13/site-packages/bfxapi/websocket/_client/__init__.py", line 1, in <module>
    from .bfx_websocket_client import BfxWebSocketClient
  File "/home/azi/.local/lib/python3.13/site-packages/bfxapi/websocket/_client/bfx_websocket_client.py", line 17, in <module>
    from bfxapi.websocket._connection import Connection
  File "/home/azi/.local/lib/python3.13/site-packages/bfxapi/websocket/_connection.py", line 18, in <module>
    _P = ParamSpec("_P")
  File "/usr/lib/python3/dist-packages/typing_extensions.py", line 1549, in __new__
    _set_default(paramspec, default)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/typing_extensions.py", line 1412, in _set_default
    type_param.__default__ = None
    ^^^^^^^^^^^^^^^^^^^^^^
AttributeError: attribute '__default__' of 'typing.ParamSpec' objects is not writable

Any idea how to fix this one?

Python version

Python 3.12.3 x64

[jazarija]

Interesting enough, if I update typing_extensions on Python 3.13.0b2 then I also incur a segfault

Python 3.13.0b2 (main, Jun  8 2024, 19:38:38) [GCC 13.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import bfxapi
Segmentation fault (core dumped)

[Davi0kProgramsThings]

Python 3.12+ is not supported yet.

Available versions are: 3.8, 3.9, 3.10 and 3.11.

[jazarija]

Hey there,

can confirm that bfxapi works on python3.11

Python 3.11.9 (main, Apr 27 2024, 21:16:11) [GCC 13.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import bfxapi
>>> 

What is the compatibility issue of switching to 3.12+?

[Davi0kProgramsThings]

bitfinex-api-py depends on 3 packages: requests, websockets and pyee.
requests has added support for python 3.12 with version 2.32.2 (2024/05/21).
Unfortunately, websockets does not yet support python 3.12.

[itsdeka]

Thank you @Davi0kProgramsThings