CODEWITHSUNDEEP
pythonmacosmacos-mojave
Crunchy234
Crunchy234

Reputation: 1937

Detect dark mode in macos from python

I am writing a PyQt app and I have to add a patch so that the font is readable on macos with dark mode enabled:

app = QApplication([])
# Fix for the font colours on macos when running dark mode
if sys.platform == 'darwin':
    p = app.palette()
    p.setColor(QPalette.Base, QColor(101, 101, 101))
    p.setColor(QPalette.ButtonText, QColor(231, 231, 231))
    app.setPalette(p)
main_window = MainWindow()
main_window.show()
app.exec_()

The issue with this patch is then it makes things unreadable on macos with light mode.

Is there a way I can detect dark mode on macos from python or using a standard shell command through subprocess?

EDIT: As of PyQt 5.12 the dark mode fix is no longer required.

Upvotes: 4

Views: 2130

Answers (2)

asottile
asottile

Reputation: 121

In case you do not want to import pyobjc, you can use Darkdetect, a dedicated package that uses only dependencies provided with standard Python distributions.

Usage:

import darkdetect

>>> darkdetect.theme()
'Dark'

>>> darkdetect.isDark()
True

>>> darkdetect.isLight()
False

Darkdetect is also available on PyPI: pip install darkdetect.

Disclaimer: I am the author of Darkdetect.

Upvotes: 10

Nikolas Stevenson-Molnar
Nikolas Stevenson-Molnar

Reputation: 4720

Building on this question, you could install pyobjc and use NSUserDefaults:

>>> from Foundation import NSUserDefaults
>>> NSUserDefaults.standardUserDefaults().stringForKey_('AppleInterfaceStyle')
'Dark'

Upvotes: 3

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