Writing cross-platform Tkinter
As you've seen so far, Tkinter mostly works identically across platforms, and even has the capability to do the right thing on each platform with minimal effort. However, there are some minor issues to be aware of as you support a Tkinter application across multiple operating systems. In this section, we'll explore the more significant differences.
Tkinter version differences across platforms
As of 2021, the official Python 3 distributions for major platforms ship at least Tcl/Tk 8.6; this is the latest major release of Tcl/Tk and includes all the functionality discussed in this book. However, not every platform includes the latest minor version, which may impact bug fixes and minor features. At the time of writing, the latest version of Tcl/Tk is 8.6.11.
Historically, some platforms (notably macOS) have lagged behind in shipping the latest version of Tcl/Tk. While platform support at the time of writing is fairly consistent...
