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Title: gh-143990: Preserve negative pixel sizes in tkinter.font.Font by dawdameet · Pull Request #143992 · python/cpython · GitHub

Open Graph Title: gh-143990: Preserve negative pixel sizes in tkinter.font.Font by dawdameet · Pull Request #143992 · python/cpython

X Title: gh-143990: Preserve negative pixel sizes in tkinter.font.Font by dawdameet · Pull Request #143992 · python/cpython

Description: gh-143990: Preserve negative pixel sizes in tkinter.font.Font Summary This PR fixes a bug where tkinter.font.Font objects would lose their negative sign (representing pixel size) and convert it to a positive integer (representing points) during initialization. details The Font.init method calls tk.call("font", "actual", font). In Tcl/Tk, font actual resolves the requested font to the system's closest match. If a font is requested in pixels (e.g., -14), Tcl calculates the equivalent point size (e.g., 11) based on the current DPI. The current implementation in tkinter/font.py was blindly accepting this resolved value and overwriting the user's original request. This fix checks if the input was a tuple containing a size, and if so, restores that specific size after the font actual call. Changes Modified Lib/tkinter/font.py to preserve the user-requested size. Added a regression test test_negative_pixel_size to Lib/test/test_tkinter/test_font.py. Verified that Font.cget("size") now returns the correct negative integer.

Open Graph Description: gh-143990: Preserve negative pixel sizes in tkinter.font.Font Summary This PR fixes a bug where tkinter.font.Font objects would lose their negative sign (representing pixel size) and convert it to ...

X Description: gh-143990: Preserve negative pixel sizes in tkinter.font.Font Summary This PR fixes a bug where tkinter.font.Font objects would lose their negative sign (representing pixel size) and convert it to ...

Opengraph URL: https://github.com/python/cpython/pull/143992

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