# Mne-python installer MacOS **URL:** \ **Category:** Support & Discussions\ **Tags:** installer\ **Created:** [July 18, 2025, 1:52pm UTC](https://mne.discourse.group/t/mne-python-installer-macos/11373 "2025-07-18T13:52:14Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![virvw](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/virvw/32/37_2.png) [@virvw](https://mne.discourse.group/u/virvw)\ **Post date:** [July 18, 2025, 1:52pm UTC](https://mne.discourse.group/t/mne-python-installer-macos/11373/1 "2025-07-18T13:52:14Z")
Hello I am encountering issues launching mne-python after a first install on a new MacBookPro. In Spyder console, the “import mne” command yields the errors message pasted below. System info: - MNE version: 1.9.0\_0 - operating system: macOS 15,5(24F74) - Spyder 6 In Spyder, the python interpreter is listed as follows: /Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/bin/python * * * ## Spyder console - Python 3.12.7 | packaged by conda-forge | (main, Oct 4 2024, 15:57:01) [Clang 17.0.6] Type “copyright”, “credits” or “license” for more information. - IPython 8.17.2 – An enhanced Interactive Python. Type ‘?’ for help. ## import mne ImportError Traceback (most recent call last) File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/core/ **init**.py:24 23 try: —\> 24 from . import multiarray 25 except ImportError as exc: File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/core/multiarray.py:10 9 import functools —\> 10 from . import overrides 11 from . import \_multiarray\_umath File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/core/overrides.py:8 7 from ..\_utils.\_inspect import getargspec ----\> 8 from numpy.core.\_multiarray\_umath import ( 9 add\_docstring, \_get\_implementing\_args, \_ArrayFunctionDispatcher) 12 ARRAY\_FUNCTIONS = set() ImportError: dlopen(/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/core/\_multiarray\_umath.cpython-312-darwin.so, 0x0002): Library not loaded: @rpath/libgfortran.5.dylib Referenced from: /Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/libopenblas.0.dylib Reason: tried: ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/core/../../../../libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/core/../../../../libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/bin/../lib/libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/bin/../lib/libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/usr/local/lib/libgfortran.5.dylib’ (no such file), ‘/usr/lib/libgfortran.5.dylib’ (no such file, not in dyld cache) During handling of the above exception, another exception occurred: ImportError Traceback (most recent call last) File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/ **init**.py:130 129 try: → 130 from numpy. **config** import show as show\_config 131 except ImportError as e: File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/ **config**.py:4 3 from enum import Enum ----\> 4 from numpy.core.\_multiarray\_umath import ( 5 **cpu\_features** , 6 **cpu\_baseline** , 7 **cpu\_dispatch** , 8 ) 10 **all** = [“show”] File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/core/ **init**.py:50 27 msg = “”" 28 29 IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE! (…) 48 “”" % (sys.version\_info[0], sys.version\_info[1], sys.executable, 49 **version** , exc) —\> 50 raise ImportError(msg) 51 finally: ImportError: IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE! Importing the numpy C-extensions failed. This error can happen for many reasons, often due to issues with your setup or how NumPy was installed. We have compiled some common reasons and troubleshooting tips at: ``` https://numpy.org/devdocs/user/troubleshooting-importerror.html ``` Please note and check the following: - The Python version is: Python3.12 from “/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/bin/python” - The NumPy version is: “1.26.4” and make sure that they are the versions you expect. Please carefully study the documentation linked above for further help. Original error was: dlopen(/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/core/\_multiarray\_umath.cpython-312-darwin.so, 0x0002): Library not loaded: @rpath/libgfortran.5.dylib Referenced from: /Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/libopenblas.0.dylib Reason: tried: ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/core/../../../../libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/core/../../../../libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/bin/../lib/libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/Users/vv221713/Applications/MNE-Python/1.9.0\_0/.mne-python/bin/../lib/libgfortran.5.dylib’ (duplicate LC\_RPATH ‘@loader\_path’), ‘/usr/local/lib/libgfortran.5.dylib’ (no such file), ‘/usr/lib/libgfortran.5.dylib’ (no such file, not in dyld cache) The above exception was the direct cause of the following exception: ImportError Traceback (most recent call last) Cell In[1], line 1 ----\> 1 import mne File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/mne/ **init**.py:35 32 # initialize logging 33 from .utils import set\_log\_level, set\_log\_file —\> 35 set\_log\_level(None, False) 36 set\_log\_file() File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/mne/utils/\_logging.py:210, in set\_log\_level(verbose, return\_old\_level, add\_frames) 189 “”“Set the logging level. 190 191 Parameters (…) 207 The old level. Only returned if `return_old_level` is True. 208 “”” 209 old\_verbose = logger.level → 210 verbose = \_parse\_verbose(verbose) 212 if verbose != old\_verbose: 213 logger.setLevel(verbose) File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/mne/utils/\_logging.py:225, in \_parse\_verbose(verbose) 224 def \_parse\_verbose(verbose): → 225 from .check import \_check\_option, \_validate\_type 226 from .config import get\_config 228 \_validate\_type(verbose, (bool, str, int, None), “verbose”) File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/mne/utils/check.py:17 14 from inspect import signature 15 from pathlib import Path —\> 17 import numpy as np 19 from ..defaults import HEAD\_SIZE\_DEFAULT, \_handle\_default 20 from ..fixes import \_compare\_version, \_median\_complex File ~/Applications/MNE-Python/1.9.0\_0/.mne-python/lib/python3.12/site-packages/numpy/ **init**.py:135 131 except ImportError as e: 132 msg = “”“Error importing numpy: you should not try to import numpy from 133 its source directory; please exit the numpy source tree, and relaunch 134 your python interpreter from there.”“” → 135 raise ImportError(msg) from e 137 **all** = [ 138 ‘exceptions’, ‘ModuleDeprecationWarning’, ‘VisibleDeprecationWarning’, 139 ‘ComplexWarning’, ‘TooHardError’, ‘AxisError’] 141 # mapping of {name: (value, deprecation\_msg)} ImportError: Error importing numpy: you should not try to import numpy from its source directory; please exit the numpy source tree, and relaunch your python interpreter from there. Important It seems you’re trying to use a module that doesn’t come with our installer. Check this FAQ in our docs to learn how to do this. ---
**Author:** ![richard](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/richard/32/15_2.png) [@richard](https://mne.discourse.group/u/richard)\ **Post date:** [July 19, 2025, 5:57pm UTC](https://mne.discourse.group/t/mne-python-installer-macos/11373/2 "2025-07-19T17:57:20Z")
Hi Virginie, please try again with the newest installer for 1.10.0, which seems to resolve this issue: > [@ImportError with libgfortran.5.dylib causing numpy to fail and MNE 1.9.0 not to load](https://mne.discourse.group/t/importerror-with-libgfortran-5-dylib-causing-numpy-to-fail-and-mne-1-9-0-not-to-load/11095/7): > > Hello @jedmeltzer, I only have a MacBook Pro with an M2 chip available, running macOS Sequoia 15.5. No problems here with the 1.10.0 installer from: [https://github.com/mne-tools/mne-installers/releases/download/v1.10.0/MNE-Python-1.10.0\_0-macOS\_M1.pkg](https://github.com/mne-tools/mne-installers/releases/download/v1.10.0/MNE-Python-1.10.0_0-macOS_M1.pkg) May I ask which architecture you’re using? Intel or Apple Silicon? Have you tried with the new 1.10.0 installers? Thanks! Richard Good luck! Richard ---
**Author:** ![virvw](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/virvw/32/37_2.png) [@virvw](https://mne.discourse.group/u/virvw)\ **Post date:** [July 19, 2025, 8:36pm UTC](https://mne.discourse.group/t/mne-python-installer-macos/11373/3 "2025-07-19T20:36:23Z")
Thank you, Richard. I used the mne-installer 1.10.0\_0 but there’s no bin in the 1.10.0\_0 folder. How do I specify a python interpreter to an IDE? Cheers, Virginie ---
**Author:** ![richard](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/richard/32/15_2.png) [@richard](https://mne.discourse.group/u/richard)\ **Post date:** [July 19, 2025, 8:57pm UTC](https://mne.discourse.group/t/mne-python-installer-macos/11373/4 "2025-07-19T20:57:03Z")
Hello, launch the `Prompt (MNE)` and look for `Using Python: ...` in the output. See: > **[IDE integration (VSCode, Spyder, etc.) — MNE 1.10.0 documentation](https://mne.tools/stable/install/ides.html#ide-setup)** Best wishes, Richard ---
**Author:** ![virvw](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/virvw/32/37_2.png) [@virvw](https://mne.discourse.group/u/virvw)\ **Post date:** [July 20, 2025, 6:01am UTC](https://mne.discourse.group/t/mne-python-installer-macos/11373/5 "2025-07-20T06:01:41Z")
Beautiful, it looks I am all set now! Thanks @richard This bit should be integrated on the IDE instructions: “launch the `Prompt (MNE)` and look for `Using Python: ...` in the output.” _(I am a newbie on Apple 😉_ ---
**Author:** ![richard](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/richard/32/15_2.png) [@richard](https://mne.discourse.group/u/richard)\ **Post date:** [July 20, 2025, 6:19am UTC](https://mne.discourse.group/t/mne-python-installer-macos/11373/6 "2025-07-20T06:19:20Z")
Great to hear it’s working for you now! The information **is** already in the documentation but apparently easy to miss. I might take a look at how we can improve this. Thanks and have a great Sunday! Richard ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\ **Post date:** [July 27, 2025, 6:19am UTC](https://mne.discourse.group/t/mne-python-installer-macos/11373/7 "2025-07-27T06:19:41Z")
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