On this note, is setting/getting variables (StringVar, IntVar etc) considered GUI action? Why, or why not? Thanks! Nam
On Mon, Mar 26, 2018 at 2:22 PM, Michael Lange <klappn...@web.de> wrote: > Hi, > > On Mon, 26 Mar 2018 12:54:20 -0700 > Nam Nguyen via Tkinter-discuss <tkinter-discuss@python.org> wrote: > > > This is where my confusion comes from, actually ;). Python is single > > threaded (from the OS point of view). When I create the TCL > > interpreter, it is also created in the same thread that runs the Python > > interpreter. So regardless of how many Python threads (threading > > module), they all should belong to this same OS thread, should they not? > > I am not an expert on this, but I don't think so. At least here when I > run a Tkinter app using threads (on linux) I see three threads in top, > each with a different pid. > And I am quite sure that I have seen strange things happen, iirc seemingly > unpredictable, when the rule of thumb "run Tk only from the main thread > and don't touch it from any child thread" was not observed. Some times > such code *seemed* to work though, which I believe makes it even more > dangerous, since it seems you can never know what (and when) will hit you. > So my recommendation is to just either stick with that "rule of thumb" or > else try the aforementioned thread-safe tkinter version. > > Best regards > > Michael > > .-.. .. ...- . .-.. --- -. --. .- -. -.. .--. .-. --- ... .--. . .-. > > On my planet, to rest is to rest -- to cease using energy. To me, it > is quite illogical to run up and down on green grass, using energy, > instead of saving it. > -- Spock, "Shore Leave", stardate 3025.2 >
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