available_apis() and available_ump_apis() both throw exceptions

[pissalou]

Hello Jean-Mickaël,
While poking around with my freshly built python binding, I noticed these two calls throw exceptions. I have tested on both Linux and Windows and it produced the same error:

$ python
Python 3.11.0 (main, Oct 24 2022, 18:26:48) [MSC v.1933 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import pylibremidi as lm
>>> lm.available_apis()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: 10 is not a valid API.
>>> lm.available_ump_apis()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: 4101 is not a valid API.

[jcelerier]

hmm weird, here on linux it gives me:

[API.ALSA_SEQ, API.ALSA_RAW, API.JACK_MIDI, API.PIPEWIRE, API.KEYBOARD, API.DUMMY]

[API.ALSA_SEQ_UMP, API.ALSA_RAW_UMP, API.DUMMY]

[jcelerier]

That's with python 3.13 though

[jcelerier]

Also the string "is not a valid API" does not come up anywhere in the codebase.. weird. Are you on current git main ?

[pissalou]

My fork is fairly recently and I have tested now on python 3.13.2 and got the same error messages. It seems to be related to the network/network (UMP) apis as you can observe under the calls to get_compiled_api_by_name() also fail with the same message respectively. Those two api types are not part of the python binding in pylibremidi.cpp, could it be your python binding was compiled using the LIBREMIDI_NO_NETWORK flag? Could it explain why you don't get the same error?

`$ python
Python 3.13.2 (tags/v3.13.2:4f8bb39, Feb 4 2025, 15:23:48) [MSC v.1942 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

import pylibremidi as lm
lm.available_apis()
Traceback (most recent call last):
File "", line 1, in
lm.available_apis()
~~~~~~~~~~~~~~~~~^^
ValueError: 10 is not a valid API.
lm.available_ump_apis()
Traceback (most recent call last):
File "", line 1, in
lm.available_ump_apis()
~~~~~~~~~~~~~~~~~~~~~^^
ValueError: 4101 is not a valid API.
lm.get_compiled_api_by_name('network')
Traceback (most recent call last):
File "", line 1, in
lm.get_compiled_api_by_name('network')
~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
ValueError: 10 is not a valid API.
lm.get_compiled_api_by_name('network (UMP)')
Traceback (most recent call last):
File "", line 1, in
lm.get_compiled_api_by_name('network (UMP)')
~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
ValueError: 4101 is not a valid API.
lm.get_compiled_api_by_name('winmm')
API.WINDOWS_MM
`