how to install pytorch in python2.7?

Question

i am using python2.7 in virtual environment. i tried to install pytorch in python2.7 but i got error belows:

 UnsatisfiableError: The following specifications were found to be incompatible with the existing python installation in your environment: - pytorch-cpu -> python[version='3.5.*|3.6.*'] - pytorch-cpu -> python[version='>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0'] If python is on the left-most side of the chain, that's the version you've asked for. When python appears to the right, that indicates that the thing on the left is somehow not available for the python version you are constrained to. Your current python version is (python=2.7). Note that conda will not change your python version to a different minor version unless you explicitly specify that. The following specifications were found to be incompatible with each other: Package wheel conflicts for: python=2.7 -> pip -> wheel pytorch-cpu -> python[version='>=3.6,<3.7.0a0'] -> pip -> wheel Package vc conflicts for: python=2.7 -> sqlite[version='>=3.27.2,<4.0a0'] -> vc[version='14.*|>=14,<15.0a0|>=14.1,<15.0a0'] python=2.7 -> vc[version='9.*|>=9,<10.0a0'] pytorch-cpu -> numpy[version='>=1.11'] -> vc[version='14|14.*|>=14,<15.0a0'] pytorch-cpu -> vc[version='>=14.1,<15.0a0'] Package cffi conflicts for: pytorch-cpu -> cffi pytorch-cpu -> python[version='>=3.6,<3.7.0a0'] -> pip -> requests -> urllib3[version='>=1.21.1,<1.25'] -> cryptography[version='>=1.3.4'] -> cffi[version='>=1.7'] python=2.7 -> pip -> requests -> urllib3[version='>=1.21.1,<1.25'] -> cryptography[version='>=1.3.4'] -> cffi[version='>=1.7'] Package pip conflicts for: python=2.7 -> pip pytorch-cpu -> python[version='>=3.6,<3.7.0a0'] -> pip Package setuptools conflicts for: python=2.7 -> pip -> setuptools pytorch-cpu -> python[version='>=3.6,<3.7.0a0'] -> pip -> setuptools Package msgpack-python conflicts for: python=2.7 -> pip -> cachecontrol -> msgpack-python pytorch-cpu -> python[version='>=3.6,<3.7.0a0'] -> pip -> cachecontrol -> msgpack-python

i tried conda install pytorch-cpu -c pytorch and link( https://pytorch.org/get-started/locally/ ). but it is not worked. so what should i do for install torch in python version2.7? i want to install pytorch cpu version.

plz help:)

Answer 1

Here's the link to the PyTorch official download page

From here, you can choose the python version (2.7) and CUDA (None) and other relevant details based on your environment and OS.

Other helpful links:

• windows
  
• windows
  
• mac
  
• ubuntu
  
• all

Answer 2

It seems that pytorch try to install some packages which requires python >= 3.6 version.

Package wheel conflicts for:
python=2.7 -> pip -> wheel
pytorch-cpu -> python[version='>=3.6,<3.7.0a0'] -> pip -> wheel

You have to specify in command for which python version would you like to install pytorch

Answer 3

For me the method in the link https://www.learnopencv.com/installing-deep-learning-frameworks-on-ubuntu-with-cuda-support/ worked.

This is how I did it:

!pip install http://download.pytorch.org/whl/cu80/torch-0.2.0.post3-cp27-cp27mu-manylinux1_x86_64.whl

Answer 4

First install conda with python2.7:
conda install pytorch torchvision torchaudio cpuonly -c pytorch

Then activate environment:
conda activate python2

Then install pytorch:
conda install pytorch torchvision torchaudio cpuonly -c pytorch

Check for confirmation:

python    
import torch
print(torch._ _version_ _)