Cannot install NumPy from a wheel format

Question

I am trying to install NumPy from a wheel (.whl) file. I get the error:

numpy-1.9.1%2Bmkl-cp34-none-win_amd64.whl is not a supported wheel on this platform.

Details:

Windows 8.1 pro x64, elevated command prompt
Python 3.4.2
Package NumPy from Gohlke's site
File numpy-1.9.1%2Bmkl-cp34-none-win_amd64.whl copied in the pip.exe folder

The log file shows:

d:\Program Files\WinPython-64bit-3.4.2.4\python-3.4.2.amd64\Scripts\pip run on 01/23/15 11:55:21
numpy-1.9.1%2Bmkl-cp34-none-win_amd64.whl is not a supported wheel on this platform.
Exception information:
Traceback (most recent call last):
File "D:\Python34\lib\site-packages\pip\basecommand.py", line 122, in main
status = self.run(options, args)
File "D:\Python34\lib\site-packages\pip\commands\install.py", line 257, in run
InstallRequirement.from_line(name, None))
File "D:\Python34\lib\site-packages\pip\req.py", line 167, in from_line
raise UnsupportedWheel("%s is not a supported wheel on this platform." % wheel.filename)
pip.exceptions.UnsupportedWheel: numpy-1.9.1%2Bmkl-cp34-none-win_amd64.whl is not a supported wheel on this platform.

What is wrong?

Could you open python and run import pip; print(pip.pep425tags.get_supported())? — Simeon Visser
– Simeon Visser, Commented Jan 23, 2015 at 11:30
[('cp34', 'none', 'win32'), ('cp34', 'none', 'any'), ('cp3', 'none', 'any'), ('cp33', 'none', 'any'), ('cp32', 'none', 'any'), ('cp31', 'none', 'any'), ('cp30', 'none', 'any'), ('py34', 'none', 'any'), ('py3', 'none', 'any'), ('py33', 'none', 'any'), ('py32', 'none', 'any'), ('py31', 'none', 'any'), ('py30', 'none', 'any')] — lmsasu
– lmsasu, Commented Jan 23, 2015 at 11:34
It doesn't seem to have the tags in the filename of the .whl so perhaps this file isn't for your platform? — Simeon Visser
– Simeon Visser, Commented Jan 23, 2015 at 13:33
What do you get when you run import platform; print(platform.platform())? Perhaps your system isn't being detected properly as 64-bit. — Simeon Visser
– Simeon Visser, Commented Jan 23, 2015 at 13:44

Simeon Visser · Accepted Answer · 2015-01-23 14:19:23Z

82

Short answer: rename the file to numpy-1.9.1%2Bmkl-cp34-none-win32.whl to install it.

You can check what tags your pip tool accepts for installation by running:

import pip; print(pip.pep425tags.get_supported())

In this case pip is incorrectly detecting your operating system to be 32-bits and the file you're trying to install was win_amd64 in its filename.

If you rename the file to numpy-1.9.1%2Bmkl-cp34-none-win32.whl (which now contains the tags that are considered supported) then you can install the package. It's a trick because the file is still built for 64-bits but this allows you to install the package as intended.

answered Jan 23, 2015 at 14:19

Simeon Visser

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11 Comments

lmsasu Over a year ago

After a real-time chat with Simeon, the problem was solved - thanks. Now the question is: how could I convince the pip system to see my machine as a x64 system - as it actually is? On x64 platform I could benefit from the 32 GB of RAM.

Simeon Visser Over a year ago

@lmsasu: it's possibly related to this bug: bugs.python.org/issue18987 - are you running a 32-bits Python interpreter on a 64-bits OS? Or, if not, we may have found a related but different bug. pip calls distutils.utils.get_platform() to determine the platform.

lalthomas Over a year ago

Now if you upgrade to pip 8.0.2+ , then the problem is solved. To upgrade on windows see this answer too.

endolith Over a year ago

The filename matters?? That's dumb. Doesn't it have metadata inside the file to tell what version it goes with? Mine was failing because the file was named scikits.audiolab-0.11.0-cp27-none-win32_001.whl by a download manager.

Voilin Over a year ago

pip debug --verbose this is easier, replace name of the file with something out of this list

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Peter Mortensen · Accepted Answer · 2022-01-19 16:27:11Z

18

After several tests I think the problem is "win32" or "amd64" itself. I tried replacing those two with "any" and it worked.

edited Jan 19, 2022 at 16:27

Peter Mortensen

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answered Feb 14, 2015 at 6:32

Gaahbon

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2 Comments

edwoollard Over a year ago

You absolute legend, thank you. Saved me so much more inevitable agony.

qwr Over a year ago

Thank you! I hope one day such a ridiculous error will be fixed.

Peter Mortensen · Accepted Answer · 2022-01-19 16:37:42Z

9

In my case, the workaround to install gohlke packages on Python (3.4.4 (AMD64)) was to change the "cp34m" part rather than the "win*" parts in previous answers:

python -c "import pip; print(pip.pep425tags.get_supported())":

[('cp34', 'none', 'win_amd64'), ('py3', 'none', 'win_amd64'),
('cp34', 'none', 'any'), ...

ls -ld *:

matplotlib-2.0.0b3-cp34-cp34m-win_amd64.whl
numpy-1.11.1+mkl-cp34-cp34m-win_amd64.whl
pandas-0.18.1-cp34-cp34m-win_amd64.whl

Change the above names to:

matplotlib-2.0.0b3-cp34-none-win_amd64.whl
numpy-1.11.1+mkl-cp34-none-win_amd64.whl
pandas-0.18.1-cp34-none-win_amd64.whl

For example, pip install matplotlib-2.0.0b3-cp34-none-win_amd64.whl

Processing ...
...Successfully installed matplotlib-2.0.0b3

edited Jan 19, 2022 at 16:37

Peter Mortensen

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answered Aug 29, 2016 at 22:49

user2974878

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Comments

Peter Mortensen · Accepted Answer · 2022-01-19 16:36:52Z

6

To add to the list of other possible solutions, I had to upgrade pip itself. The latest binary from Gholke's site had the "cp27m" tag, which didn't show up when I checked the pip tags using:

import pip; print(pip.pep425tags.get_supported())

After I upgraded pip, the wheel didn't work, but just doing a regular pip install numpy worked.

edited Jan 19, 2022 at 16:36

Peter Mortensen

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answered Apr 7, 2016 at 1:05

Davidjb

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2 Comments

nikoliazekter Over a year ago

After the upgrade I've managed to install the wheel on the first try.!

DSchmidt Over a year ago

@lmsasu this is the correct answer: update pip pip install --upgrade pip

Noumenon · Accepted Answer · 2016-06-18 01:22:18Z

3

If you have, say, Python 3.4 installed, make sure to install the -cp34- version of the wheel and not -cp35-.

answered Jun 18, 2016 at 1:22

Noumenon

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Comments

Peter Mortensen · Accepted Answer · 2022-01-19 16:21:53Z

2

The current WinPython package manager need a two-characters fix to accept to recognize the new NumPy + mkl 'wheel'.

https://github.com/stonebig/winpython/commit/5e13230609a2e9f4d66d98c3776207ce4b4dd050

edited Jan 19, 2022 at 16:21

Peter Mortensen

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answered Jan 29, 2015 at 18:33

stonebig

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Peter Mortensen · Accepted Answer · 2022-01-19 16:29:21Z

2

As a workaround, uninstall the NumPy package:

pip uninstall numpy

Then install it again from cache:

pip install numpy

I had the same problem with several packages after upgrading from 3.4.1 to 3.4.2.

edited Jan 19, 2022 at 16:29

Peter Mortensen

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answered Feb 16, 2015 at 16:05

jask

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Comments

Peter Mortensen · Accepted Answer · 2022-01-19 16:31:35Z

2

Navigate to the directory where your 'pip.py' sits and then type following on the Windows command line:

..\python.exe pip.py install name_of_package.whl

This should work.

edited Jan 19, 2022 at 16:31

Peter Mortensen

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answered Feb 18, 2015 at 9:07

prku9595

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Peter Mortensen · Accepted Answer · 2022-01-19 16:33:32Z

2

I had the same problem and tried to work it out with the suggested solutions.

I changed win64 to win32 and it didn't work either. But then I changed the name to original and this time it worked! The only extra thing I did was to go offline. That's so strange.

edited Jan 19, 2022 at 16:33

Peter Mortensen

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answered Jun 2, 2015 at 9:14

geo

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Comments

Peter Mortensen · Accepted Answer · 2022-01-17 18:28:28Z

1

This has nothing to do with your operating system. Uninstall Python 32-bit and install Python 64-bit rather or alternatively find a 32-bit wheel file.

edited Jan 17, 2022 at 18:28

Peter Mortensen

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answered Dec 4, 2016 at 17:04

Steven Mark Ford

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