can't import torch mac

Question

I'm trying to import torch and I'm getting the next problem:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/torch/__init__.py", line 66, in <module>
    import torch._dl as _dl_flags
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/torch/_dl.so, 2): no suitable image found.  Did find:
    /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/torch/_dl.so: mach-o, but wrong architecture
    /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/torch/_dl.so: mach-o, but wrong architecture

someone knows how can I solve this? Thanks:)

Possible duplicate of [/usr/lib/libstdc++.6.dylib: mach-o, but wrong architecture](https://stackoverflow.com/questions/18928586/usr-lib-libstdc-6-dylib-mach-o-but-wrong-architecture) — Greg Eremeev, May 19 '18 at 13:27
How did you install `pytorch`? Does it support MacOS or your version of Python? — Horia Coman, May 19 '18 at 13:28
@HoriaComan pip install torch torchvision. and I'm using python 2.7 so this is the correct version — chengal, May 19 '18 at 13:31
@chengal are you sure your computer can run this thing? As Greg pointed out, you might be trying to run 64 bit code on a 32 bit machine. If you do `file /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/torch/_dl.so` what is the output? — Horia Coman, May 19 '18 at 13:48
@HoriaComan `/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/torch/_dl.so: Mach-O 64-bit bundle x86_64` — chengal, May 19 '18 at 13:53
And if you follow [these instructions](https://www.chiefarchitect.com/support/article/KB-01230/determining-if-your-computer-is-32-bit-or-64-bit.html) is your computer a 32 bit or 64 bit system? — Horia Coman, May 19 '18 at 14:02

Greg Eremeev · Accepted Answer · 2018-05-19T14:00:52.350

3

Try like that:

mkdir test_torch
cd test_torch
python3 -m venv .venv
source .venv/bin/activate
pip install torch torchvision
python3

>>> import torch

Works for me. MacOS 10.13.4, Python 3.6.4

Or like that:

mkdir test_torch
cd test_torch
virtualenv .venv
source .venv/bin/activate
pip install --upgrade pip
pip install torch torchvision
python2

>>> import torch

Works for me. MacOS 10.13.4, Python 2.7.10

If you don't need to use torch then you can install only torchvision

pip install --no-deps torchvision

edited May 19 '18 at 14:00

answered May 19 '18 at 13:47

Greg Eremeev

1,760
5
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I'm using python 2.7.. so i have to delete the 3? – chengal May 19 '18 at 13:53
@chengal I've added the solution for Python2.x. Try it. – Greg Eremeev May 19 '18 at 14:02
@chengal brew install virtualenv – Greg Eremeev May 19 '18 at 14:07
`Error: No available formula with the name "virtualenv" ==> Searching for a previously deleted formula (in the last month)... Warning: homebrew/core is shallow clone. To get complete history run: git -C "$(brew --repo homebrew/core)" fetch --unshallow` – chengal May 19 '18 at 14:19
`Error: No previously deleted formula found. ==> Searching for similarly named formulae... ==> Searching local taps... These similarly named formulae were found: pyenv-virtualenv ✔ pyenv-virtualenvwrapper ✔ To install one of them, run (for example): brew install pyenv-virtualenv ✔ ==> Searching taps... ==> Searching taps on GitHub... Error: No formulae found in taps.` – chengal May 19 '18 at 14:19
@chengal brew install pyenv-virtualenv – Greg Eremeev May 19 '18 at 14:26
I did it. Installed also pyenv-virtualenvwrapper. – chengal May 19 '18 at 14:29
Also, pip install virtualenv. After that you could try commands which are above, in the answer – Greg Eremeev May 19 '18 at 14:43
`Requirement already satisfied: virtualenv in /Users/Gal_Chen/Library/Python/2.7/lib/python/site-packages (16.0.0)`. this was install' and the commands in the answer still doesn't work – chengal May 19 '18 at 14:49
Then pip uninstall virtualenv && sudo pip install virtualenv – Greg Eremeev May 19 '18 at 14:51
thank you very much. that worked:) but what is that virtual env? I will need to use this every time that i want to use torch? – chengal May 19 '18 at 14:54
@chengal if it works then mark the answer as a correct answer. You need to understand what vertualenv is and why developers use it. You need to create virtualenv every time when you wanna create a new project to install all Python packages there. https://docs.python.org/3/tutorial/venv.html – Greg Eremeev May 19 '18 at 14:58
ok. thank you:) and if I write a python script how can I use torch? – chengal May 19 '18 at 15:04
Why do we need to use a virtual environment? I intend on only using one version of PyTorch. At the very least just get it working first – JobHunter69 Jun 04 '19 at 04:44
@Goldname https://realpython.com/python-virtual-environments-a-primer/#why-the-need-for-virtual-environments – Greg Eremeev Jun 04 '19 at 10:20
@GregEremeev I know, I read that. I am not looking on how to get it working with best practices. I just want it to work right now, installed on the system level, but it doesn't work – JobHunter69 Jun 06 '19 at 17:11

score 0 · Answer 2 · answered Jun 18 '19 at 22:02

0

Try

brew install libomp

should solve the problem

answered Jun 18 '19 at 22:02

Prakhar Agarwal

2,724
28
31

can't import torch mac

2 Answers2