How to install pip and numpy for Cinema 4D 2024 on MacOS?

Jweffrey

I am using Cinema 4D 2024 and I have downloaded get-pip.py. I entered the Cinema 4D 2024 folder and then typed 'c4dpy -m get-pip.py' in terminal but it returns 'command not found: c4dpy'. How can I solve this? I have to install numpy for ePMV.

cybor09

Hi!

Maybe this video can help you:

https://lesterbanks.com/2019/10/how-to-install-a-3rd-party-python-library-in-cinema-4d/

m_adam

Hi @Jweffrey to access the executable of any packaged application on mac you need to do:

Right-click on c4dpy.app and select Show Package Contents.
Navigate to the Contents/MacOS directory.
Drag the c4dpy file into the Terminal window and press enter.
c4dpy should run without error and ask your MyMaxon account. Next start you will not need to login again.

Once you have done that you can do again step 1, 2, 3 but instead of pressing enter, either type c4dpy.app/Contents/MacOs/c4dpy get-pip.py to execute a file or the command line c4dpy.app/Contents/MacOs/c4dpy -m ensurepip.
Then you will need to run the command c4dpy.app/Contents/MacOs/c4dpy -m pip install numpy.

With that's said we do not provide support for 3rd party libraries, so if it work, that's nice if it does not, Maxon Support stop here.
Cheers,
Maxime.

gupon

@m_adam Hi Maxime.
Sorry for cutting in. I followed these instructions, and c4dpy authentication seems OK.
But "c4dpy -m ensure pip" always give me errors, and I can't import numpy.
Is there anything I can do after this?

/Applications/Maxon\ Cinema\ 4D\ 2024/c4dpy.app/Contents/MacOS/c4dpy -m ensurepip
sysctl: No such file or directory
sysctl: No such file or directory
/Applications/Maxon Cinema 4D 2024/c4dpy.app/Contents/MacOS/c4dpy: can't open file 'ignore::DeprecationWarning': no such file or directory (file:///Applications/Maxon Cinema 4D 2024/resource/modules/volumes/libs/macOS_universal/ignore::DeprecationWarning)
(null)Traceback (most recent call last):
(null)  File "<frozen runpy>", line 198, in _run_module_as_main
(null)  File "<frozen runpy>", line 88, in _run_code
(null)  File "/Applications/Maxon Cinema 4D 2024/resource/modules/python/libs/python311.macos.framework/lib/python3.11/ensurepip/__main__.py", line 5, in <module>
(null)    sys.exit(ensurepip._main())
(null)             ^^^^^^^^^^^^^^^^^
(null)  File "/Applications/Maxon Cinema 4D 2024/resource/modules/python/libs/python311.macos.framework/lib/python3.11/ensurepip/__init__.py", line 286, in _main
(null)    return _bootstrap(
(null)           ^^^^^^^^^^^
(null)  File "/Applications/Maxon Cinema 4D 2024/resource/modules/python/libs/python311.macos.framework/lib/python3.11/ensurepip/__init__.py", line 202, in _bootstrap
(null)    return _run_pip([*args, *_PACKAGE_NAMES], additional_paths)
(null)           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
(null)  File "/Applications/Maxon Cinema 4D 2024/resource/modules/python/libs/python311.macos.framework/lib/python3.11/ensurepip/__init__.py", line 103, in _run_pip
(null)    return subprocess.run(cmd, check=True).returncode
(null)           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
(null)  File "/Applications/Maxon Cinema 4D 2024/resource/modules/python/libs/python311.macos.framework/lib/python3.11/subprocess.py", line 571, in run
(null)    raise CalledProcessError(retcode, process.args,
(null)subprocess.CalledProcessError: Command '['/Applications/Maxon Cinema 4D 2024/c4dpy.app/Contents/MacOS/c4dpy', '-W', 'ignore::DeprecationWarning', '-c', '\nimport runpy\nimport sys\nsys.path = [\'/var/folders/wg/w0xrgt954qz99qpz4tg69bf40000gn/T/tmplj1265bd/setuptools-65.5.0-py3-none-any.whl\', \'/var/folders/wg/w0xrgt954qz99qpz4tg69bf40000gn/T/tmplj1265bd/pip-23.1.2-py3-none-any.whl\'] + sys.path\nsys.argv[1:] = [\'install\', \'--no-cache-dir\', \'--no-index\', \'--find-links\', \'/var/folders/wg/w0xrgt954qz99qpz4tg69bf40000gn/T/tmplj1265bd\', \'setuptools\', \'pip\']\nrunpy.run_module("pip", run_name="__main__", alter_sys=True)\n']' returned non-zero exit status 2.

gupon

I made a little progress and succeeded installing pip, by setting permissions with chmod to /Applications/Maxon Cinema 4D 2024/resource/modules and c4dpy itself, and using downloaded "get-pip.py" instead.
But I can't still install numpy yet...

c4dpy -m pip install numpy
sysctl: No such file or directory
Collecting numpy
  Using cached numpy-1.26.2-cp311-cp311-macosx_11_0_arm64.whl.metadata (115 kB)
Using cached numpy-1.26.2-cp311-cp311-macosx_11_0_arm64.whl (14.0 MB)
Installing collected packages: numpy
ERROR: Could not install packages due to an OSError: [Errno 13] Permission denied: 'lib'
Check the permissions.

I wish I could run the command with "sudo", but c4dpy Authentication Error appears...

sudo c4dpy -m pip install numpy
Error running authentication: Please sign into the Maxon App [license_maxonapp.cpp(689)]
Open the ApplicationManager to assign a license: mxapp://localhost/open/v1?source=net.maxon.cinema4d.cmdline&version=2024.000
Please fix the license in the MaxonApp, press return to try again:

I think c4dpy is already authenticated, and the license is assigned to C4D 2024 in Maxon App, which is opened from the link.

Is there anything I can try in this situation?
Thank you.

gupon

I apologize for posting repeatedly. I think I succeeded in installing numpy and other libraries as well.
In case for someone in same situation, I would like to share my own case resolution.

After installing pip, not from c4dpy, but using the python below worked:
/Applications/Maxon Cinema 4D 2024/resource/modules/python/libs/python311.macos.framework/python

and executed the command like python -m pip install numpy normally.
And worked inside C4D properly.

If there are any inaccuracies or clear errors, I would appreciate it if you could point them out. Thank you in advance.