pip install opencv-python gives error on Raspbian

[Jorge1701]

Environment

OS: Raspbian on a Raspberry Pi 3 B+

 $ python --version
Python 2.7.13

 $ python3 --version
Python 3.6.3

 $ pip --version
pip 19.1 from /usr/local/lib/python3.6/site-packages/pip (python 3.6)

Description

I try to execute pip install opencv-python and it gives me an error

I've tried pip install opencv-contrib-python, python3 -m pip install opencv-python and that gives me the same error.

And pip install --upgrade pip before trying to install opencv, but it says I already have the latest version.
Expected behavior

A successful installation of opencv-python
How to Reproduce

I just run pip install opencv-python or one of the above and the error message appears

Output

Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting opencv-python
ERROR: Could not find a version that satisfies the requirement opencv-python (from version: none)
ERROR: No matching distribution found for opencv-python

[uranusjr]

OpenCV-Python is wheel-only, and does not publish binaries compatible with ARM, so pip cannot find anything useful to install. You’ll need to ask the project maintainers of OpenCV-Python for assistance.

[chrahunt]

Hi @Jorge1701. As mentioned, there are no wheels in PyPI for opencv-python. They are tracking building for ARM in opencv/opencv-python#13. In the meantime you might try piwheels which does have a version of opencv-python available here. Check their homepage for information on how to use it.

I think we can probably track the general improvement to the error message as part of #6526.

Please let us know if you run into any other issues.

[chrahunt]

Closing this issue now, but please come back if you need any help.

[no-response]

This issue has been automatically closed because there has been no response to our request for more information from the original author. With only the information that is currently in the issue, we don't have enough information to take action. Please reach out if you have or find the answers we need so that we can investigate further.

[chrahunt]

Uh, thanks bot. 😉