Python 3.x Development Announcement

[Erkan Ozgur Yilmaz]

We are already distributing DisplayCAL over PyPI so it is possible to install DisplayCAL by just running “pip install DisplayCAL”. I recommend doing it in a virtual env, the GitHub page already has explanation on how to install it in to a virtual env.

[Mark Walter]

We are already distributing DisplayCAL over PyPI so it is possible to install DisplayCAL by just running “pip install DisplayCAL”. I recommend doing it in a virtual env, the GitHub page already has explanation on how to install it in to a virtual env.

Dear Erkan, First of all thank you very much for all the effort you put into this. If I follow the instructions on GitHub to install it for macOS via Homebrew, I get an error code when I send the following command:

pip install -r requirements.txt
python -m build
pip install dist/DisplayCAL-3.9.*.whl

Errorcode:

zsh: command not found: pip
zsh: command not found: python
zsh: no matches found: dist/DisplayCAL-3.9.*.whl

[Erkan Ozgur Yilmaz]

after installing homebrew check if you have these lines in your ~/.zprofile

# Set PATH, MANPATH, etc., for Homebrew.
eval “$(/opt/homebrew/bin/brew shellenv)”
export CLICOLOR=1
export LSCOLORS=ExGxFxdxCxDxDxxbaDecac

and then install python by running:

brew install [email protected]

[BBBLove]

Hi Erkan, thank you so much for continuing to develop DisplayCAL.

I was trying to install it on Windows 10, but I couldn’t find the EXE file in the folder.

How can I install DisplayCAL on Windows 10?

Thank you.

[Kuba Trybowski]

For now, you should stick to the last stable release, which works just fine on Win10/11:

https://displaycal.net/#download

[Erkan Ozgur Yilmaz]

Exactly, under Windows you can use the old installers.

[Mark Walter]

after installing homebrew check if you have these lines in your ~/.zprofile

# Set PATH, MANPATH, etc., for Homebrew.
eval “$(/opt/homebrew/bin/brew shellenv)”
export CLICOLOR=1
export LSCOLORS=ExGxFxdxCxDxDxxbaDecac

and then install python by running:

brew install [email protected]

Hello Erkan,

I tried to do that, but still I get the same issues. Maybe there is a misspelling or something like that?

[sqkkyzx]

I hope to see a py3 version for Windows available, as py2 has been completely abandoned. Although the old version is still usable on Windows, it has no future if it doesn’t migrate to PY3. I didn’t see a donation option on GitHub; you might consider adding one.

[Erkan Ozgur Yilmaz]

I hope to see a py3 version for Windows available, as py2 has been completely abandoned. Although the old version is still usable on Windows, it has no future if it doesn’t migrate to PY3. I didn’t see a donation option on GitHub; you might consider adding one.

hi, unfortunatelly I myself am also, kind of, practically abondoning the project as I’m not reserving the required time the project deservers… But, apart from moving DisplayCAL to Python 3 we didn’t implement any new features, we might have solved a bunch of old bugs along the way… So, you can keep using the Python 2 version under Windows as it contains its own embedded Python 2 interpreter and it is practically 99% the same with our Python 3 version.

And for the donations, as I stated in the project goals, we’ll keep the original donation links so that Florian Höch and Greame Gill are still the primary beneficiaries, and I highly encourage using the donation links on this site.

[borez]

I hope to see a py3 version for Windows available, as py2 has been completely abandoned. Although the old version is still usable on Windows, it has no future if it doesn’t migrate to PY3. I didn’t see a donation option on GitHub; you might consider adding one.

hi, unfortunatelly I myself am also, kind of, practically abondoning the project as I’m not reserving the required time the project deservers… But, apart from moving DisplayCAL to Python 3 we didn’t implement any new features, we might have solved a bunch of old bugs along the way… So, you can keep using the Python 2 version under Windows as it contains its own embedded Python 2 interpreter and it is practically 99% the same with our Python 3 version.

And for the donations, as I stated in the project goals, we’ll keep the original donation links so that Florian Höch and Greame Gill are still the primary beneficiaries, and I highly encourage using the donation links on this site.

Sorry to hear of the decision. Hope someone (or even Florian) can pick up this project.

Lastly Erkan, is it possible to do a final push and release a compiled Mac package for this last release?

[Erkan Ozgur Yilmaz]

Hello DisplayCAL Users,

I’m writing to you today with a special request regarding my upcoming application for a UK Global Talent Visa. This visa, designed for individuals with exceptional talent in their field, would allow me to continue developing and supporting DisplayCAL from the UK, ensuring its future growth and availability for everyone.

A crucial part of this application involves demonstrating the impact and value of my work, and there’s no better way to do this than through your direct experiences and feedback.

I would be incredibly grateful if you could share your testimonials about DisplayCAL at https://github.com/eoyilmaz/displaycal-py3/issues/581

Specifically, I’m interested in hearing:

How has DisplayCAL benefited you? (e.g., improved color accuracy, solved specific workflow problems, saved you money, enhanced your creative output, etc.)
What are your favorite features or aspects of DisplayCAL?
How has DisplayCAL impacted your work or projects?
Any specific success stories or “aha!” moments you’ve had with DisplayCAL.
Your honest and detailed feedback will be invaluable in showcasing the real-world impact of DisplayCAL and strengthening my visa application. Please feel free to write as much or as little as you like, but the more specific and descriptive you can be, the better!

Thank you so much for your continued support of DisplayCAL. It means a great deal to me to see how this project helps so many of you.

Best regards,

Erkan Ozgur Yilmaz

[Kuba Trybowski]

If it’s not too much to ask, do you think you could also take care of the development of DWM LUT, so it doesn’t die?

https://github.com/lauralex/dwm_lut

The current developer hasn’t updated it in months and I’m worried it might soon stop working.

[Mais78]

I hope to see a py3 version for Windows available, as py2 has been completely abandoned. Although the old version is still usable on Windows, it has no future if it doesn’t migrate to PY3. I didn’t see a donation option on GitHub; you might consider adding one.

hi, unfortunatelly I myself am also, kind of, practically abondoning the project as I’m not reserving the required time the project deservers… But, apart from moving DisplayCAL to Python 3 we didn’t implement any new features, we might have solved a bunch of old bugs along the way… So, you can keep using the Python 2 version under Windows as it contains its own embedded Python 2 interpreter and it is practically 99% the same with our Python 3 version.

And for the donations, as I stated in the project goals, we’ll keep the original donation links so that Florian Höch and Greame Gill are still the primary beneficiaries, and I highly encourage using the donation links on this site.

I am trying to understand the current status of the project. I assume you changed your mind since this 2023 post?

Thanks

[Vincent]

I hope to see a py3 version for Windows available, as py2 has been completely abandoned. Although the old version is still usable on Windows, it has no future if it doesn’t migrate to PY3. I didn’t see a donation option on GitHub; you might consider adding one.

hi, unfortunatelly I myself am also, kind of, practically abondoning the project as I’m not reserving the required time the project deservers… But, apart from moving DisplayCAL to Python 3 we didn’t implement any new features, we might have solved a bunch of old bugs along the way… So, you can keep using the Python 2 version under Windows as it contains its own embedded Python 2 interpreter and it is practically 99% the same with our Python 3 version.

And for the donations, as I stated in the project goals, we’ll keep the original donation links so that Florian Höch and Greame Gill are still the primary beneficiaries, and I highly encourage using the donation links on this site.

I am trying to understand the current status of the project. I assume you changed your mind since this 2023 post?

Thanks

September 2025: https://github.com/eoyilmaz/displaycal-py3/releases/tag/3.9.17
There are commits last month, seems alive but mature enough on macOS to do not require regular updates.

[Mais78]

Thank you, now that there is an installer, do I need to install also python on MacOS?

[Author]

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