MacOS 15 get_cput_info() hangs on rosetta python on Apple M1 Ultra

[edbarnard]

Config

• CPU architecture: Apple ARM (M1 Ultra) with Rosetta (x86) python
• Operating System: macOS 15
• Python version: 3.11.11
• Version of py-cpuinfo: 9.0.0

cpuinfo.get_cpu_info() hangs waiting for a subprocess to return. It never does, so get_cpu_info() never returns.

Example

Python 3.11.11 (main, Dec 11 2024, 10:28:39) [Clang 14.0.6 ] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import cpuinfo
>>> cpuinfo.get_cpu_info()
^CTraceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/esbarnard/opt/anaconda3/envs/tiled-client/lib/python3.11/site-packages/cpuinfo/cpuinfo.py", line 2759, in get_cpu_info
    output = get_cpu_info_json()
             ^^^^^^^^^^^^^^^^^^^
  File "/Users/esbarnard/opt/anaconda3/envs/tiled-client/lib/python3.11/site-packages/cpuinfo/cpuinfo.py", line 2742, in get_cpu_info_json
    output = p1.communicate()[0]
             ^^^^^^^^^^^^^^^^
  File "/Users/esbarnard/opt/anaconda3/envs/tiled-client/lib/python3.11/subprocess.py", line 1209, in communicate
    stdout, stderr = self._communicate(input, endtime, timeout)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/esbarnard/opt/anaconda3/envs/tiled-client/lib/python3.11/subprocess.py", line 2115, in _communicate
    ready = selector.select(timeout)
            ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/esbarnard/opt/anaconda3/envs/tiled-client/lib/python3.11/selectors.py", line 415, in select
    fd_event_list = self._selector.poll(timeout)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
KeyboardInterrupt
>>> 

Tested on other computers with similar cpu and OSes:

Computer	macOS	python	works?
M3 Macbook Air	macOS 14.4	Native ARM Python 3.12	WORKS
M3 Macbook Air	macOS 15.2	Native ARM Python 3.12	WORKS
M1 Ultra Mac Studio	macOS 15.1.1	Rosetta Python 3.12	FAILS
M1 iMac	macOS 14.6.1	Rosetta Python 3.12	WORKS
Intel i9 MacBook Pro	macOS 15.0	Native x86 Python 3.12	WORKS