Wheels built from different versions of pip cannot be installed successfully

[zifeiYv]

• Pip version: 19.0.3
• Python version: 3.6.0
• Operating system: windows7, 64bit

I build a wheel using pip wheel numpy command and copy it to another win7, 64bit computer with 7.0.0 pip and 3.6.0 python to install, it fails however. When I upgrade target pip into version 19.1.1, it succeed.

It seems that wheel file must be built and installed through pip with the same major version number(of course python version should meet first), is that right?

[pfmoore]

wheel file must be built and installed through pip with the same major version number

No, that's not right. There must be something else causing the issue here, although without more detail, there's no way of telling what, unfortunately.

[zifeiYv]

wheel file must be built and installed through pip with the same major version number

No, that's not right. There must be something else causing the issue here, although without more detail, there's no way of telling what, unfortunately.

In theory, as long as the main version number of Python is the same and the version of the operating system is the same, then there will be no problem, right?

[pfmoore]

In theory, as long as the wheel tags are compatible with the target environment, pip will be able to install the wheel.

But at the moment, you haven't even explained what you mean by "it fails however". So it's pointless speculating what might be going wrong.

[RonnyPfannschmidt]

id like to note that numpy is a special package in the sense that its very sensitive to the exact versions of some dependencies, so a just slightly different builds can make things go south for you

[pfmoore]

... which is why knowing exactly what "it fails" means is crucial ;-)

[zifeiYv]

... which is why knowing exactly what "it fails" means is crucial ;-)

Sorry for insufficient description.
I build jpype1-0.6.3-cp36-cp36m-win_amd64.whl through pip 19.0.3 and copy to another python 3.6 environment in windows, with pip 7.1.0. It fails to install and prints info:

You are using pip version 7.1.0, however version 19.1.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.
JPype1-0.6.3-cp36-cp36m-win_amd64.whl is not a supported wheel on this platform.

When I upgrade pip to 19.1.1 and install again, it success.

Besides, it can install other packages, like six, successfully without upgrading.

[pfmoore]

Pip 71. is pretty ancient, and IIRC the valid tag values have changed since then (specifically the cp36m ABI tag is new). So yes, you should upgrade pip to get a version compatible with current tag standards. This won't affect pure Python wheels like six, as they don't have ABI tag restrictions.

[zifeiYv]

Pip 71. is pretty ancient, and IIRC the valid tag values have changed since then (specifically the cp36m ABI tag is new). So yes, you should upgrade pip to get a version compatible with current tag standards. This won't affect pure Python wheels like six, as they don't have ABI tag restrictions.

Thank you very much for your patience and explanation. I will try to avoid these problems in the future.