Unable to install onnxruntime on Windows x64

[Pederduel]

When writing: pip install onnxruntime
or: pip3 install onnxruntime in the command prompt,
I get the same two errors:
ERROR: Could not find a version that satisfies the requirement onnxruntime
ERROR: No matching distribution found for onnxruntime

I have already installed onnx and onnxmltools.

I am using Windows 10 on an x64 system.
Python version 3.8.5.
Pip version 21.0.1.

How do I install onnxruntime on my computer?

[pranavsharma]

I cannot repro it. Ran the following on windows 10 x64.

(python385) C:\Users\prs>python -V
Python 3.8.5

(python385) C:\Users\prs>pip -V
pip 21.0.1 from C:\Users\prs\AppData\Local\Continuum\anaconda3\envs\python385\lib\site-packages\pip (python 3.8)

(python385) C:\Users\prs>pip install onnx onnxmltools
Collecting onnx
  Downloading onnx-1.8.1-cp38-cp38-win_amd64.whl (6.9 MB)
     |████████████████████████████████| 6.9 MB 6.8 MB/s
Collecting onnxmltools
  Downloading onnxmltools-1.7.0-py2.py3-none-any.whl (252 kB)
     |████████████████████████████████| 252 kB ...
Requirement already satisfied: six in c:\users\prs\appdata\local\continuum\anaconda3\envs\python385\lib\site-packages (from onnx) (1.15.0)
Requirement already satisfied: numpy>=1.16.6 in c:\users\prs\appdata\local\continuum\anaconda3\envs\python385\lib\site-packages (from onnx) (1.20.2)
Requirement already satisfied: protobuf in c:\users\prs\appdata\local\continuum\anaconda3\envs\python385\lib\site-packages (from onnx) (3.15.6)
Collecting typing-extensions>=3.6.2.1
  Downloading typing_extensions-3.7.4.3-py3-none-any.whl (22 kB)
Collecting skl2onnx
  Downloading skl2onnx-1.8.0-py2.py3-none-any.whl (230 kB)
     |████████████████████████████████| 230 kB ...
Collecting onnxconverter-common<1.8.0,>=1.7.0
  Downloading onnxconverter_common-1.7.0-py2.py3-none-any.whl (64 kB)
     |████████████████████████████████| 64 kB ...
Collecting keras2onnx
  Downloading keras2onnx-1.7.0-py3-none-any.whl (96 kB)
     |████████████████████████████████| 96 kB 2.6 MB/s
Collecting fire
  Downloading fire-0.4.0.tar.gz (87 kB)
     |████████████████████████████████| 87 kB 5.8 MB/s
Collecting requests
  Downloading requests-2.25.1-py2.py3-none-any.whl (61 kB)
     |████████████████████████████████| 61 kB 3.8 MB/s
Collecting termcolor
  Using cached termcolor-1.1.0.tar.gz (3.9 kB)
Collecting chardet<5,>=3.0.2
  Downloading chardet-4.0.0-py2.py3-none-any.whl (178 kB)
     |████████████████████████████████| 178 kB ...
Requirement already satisfied: certifi>=2017.4.17 in c:\users\prs\appdata\local\continuum\anaconda3\envs\python385\lib\site-packages (from requests->keras2onnx->onnxmltools) (2020.12.5)
Collecting urllib3<1.27,>=1.21.1
  Downloading urllib3-1.26.4-py2.py3-none-any.whl (153 kB)
     |████████████████████████████████| 153 kB ...
Collecting idna<3,>=2.5
  Downloading idna-2.10-py2.py3-none-any.whl (58 kB)
     |████████████████████████████████| 58 kB 3.0 MB/s
Collecting scikit-learn>=0.19
  Downloading scikit_learn-0.24.1-cp38-cp38-win_amd64.whl (6.9 MB)
     |████████████████████████████████| 6.9 MB ...
Collecting scipy>=1.0
  Downloading scipy-1.6.2-cp38-cp38-win_amd64.whl (32.7 MB)
     |████████████████████████████████| 32.7 MB 6.8 MB/s
Collecting threadpoolctl>=2.0.0
  Using cached threadpoolctl-2.1.0-py3-none-any.whl (12 kB)
Collecting joblib>=0.11
  Downloading joblib-1.0.1-py3-none-any.whl (303 kB)
     |████████████████████████████████| 303 kB ...
Building wheels for collected packages: fire, termcolor
  Building wheel for fire (setup.py) ... done
  Created wheel for fire: filename=fire-0.4.0-py2.py3-none-any.whl size=115928 sha256=27c2ca8f30e4aafd1c12d032a00183fa046fcfa41c58f8940444cd82d1ab5334
  Stored in directory: c:\users\prs\appdata\local\pip\cache\wheels\1f\10\06\2a990ee4d73a8479fe2922445e8a876d38cfbfed052284c6a1
  Building wheel for termcolor (setup.py) ... done
  Created wheel for termcolor: filename=termcolor-1.1.0-py3-none-any.whl size=4829 sha256=15b1ddf63e07448a3512e5a9dc99bcd95308ba4d34e74716d90a00bbf3719eef
  Stored in directory: c:\users\prs\appdata\local\pip\cache\wheels\a0\16\9c\5473df82468f958445479c59e784896fa24f4a5fc024b0f501
Successfully built fire termcolor
Installing collected packages: typing-extensions, urllib3, threadpoolctl, termcolor, scipy, onnx, joblib, idna, chardet, scikit-learn, requests, onnxconverter-common, fire, skl2onnx, keras2onnx, onnxmltools
Successfully installed chardet-4.0.0 fire-0.4.0 idna-2.10 joblib-1.0.1 keras2onnx-1.7.0 onnx-1.8.1 onnxconverter-common-1.7.0 onnxmltools-1.7.0 requests-2.25.1 scikit-learn-0.24.1 scipy-1.6.2 skl2onnx-1.8.0 termcolor-1.1.0 threadpoolctl-2.1.0 typing-extensions-3.7.4.3 urllib3-1.26.4

(python385) C:\Users\prs>pip install onnxruntime
Collecting onnxruntime
  Using cached onnxruntime-1.7.0-cp38-cp38-win_amd64.whl (4.4 MB)
Requirement already satisfied: numpy>=1.16.6 in c:\users\prs\appdata\local\continuum\anaconda3\envs\python385\lib\site-packages (from onnxruntime) (1.20.2)
Requirement already satisfied: protobuf in c:\users\prs\appdata\local\continuum\anaconda3\envs\python385\lib\site-packages (from onnxruntime) (3.15.6)
Requirement already satisfied: six>=1.9 in c:\users\prs\appdata\local\continuum\anaconda3\envs\python385\lib\site-packages (from protobuf->onnxruntime) (1.15.0)
Installing collected packages: onnxruntime
Successfully installed onnxruntime-1.7.0

[Pederduel]

Hmm ok, thanks. I'll keep trying

[Pederduel]

I found out that I have the 32-bit Python version. Could that be the issue?

[Pederduel]

I downloaded Python 3.9.2, 64-bit version. Works for installing onnxruntime, but I get this error: ERROR: Could not build wheels for onnx which use PEP 517 and cannot be installed directly when trying to install onnx and onnxmltools on that version.

[pranavsharma]

onnx doesn't have any pkg for 3.9.2. onnxmltools should work. You can always look here.
https://pypi.org/project/onnx/#files
https://pypi.org/project/onnxmltools/#files

[Pederduel]

Downgraded to Python 3.8.0 and now it works :)