python - Tkinter widget not filling grid -
i seem struggling grid in tkinter, new , have trawled forum , web not found answer.
i 2 buttons , label fill grid has fixed size of 320 x 240. had trouble sticky , having read net written in 3 different ways, none of them throw error none of them work.
here code:
import tkinter tk class application(tk.frame): def __init__(self, master=none): self.setlounge = 21.0 tk.frame.__init__(self, master) self.grid() self.createwidgets() def createwidgets(self): self.lou_dec = tk.button(self) self.lou_dec["text"] = "<" self.lou_dec["command"] = self.loudec self.lou_dec.grid(row=1, column=1, sticky=("n", "s", "e", "w")) self.lblloutemp = tk.label(self) self.lblloutemp["text"] = self.setlounge self.lblloutemp.grid(row=1, column=2, sticky=(tk.n + tk.s + tk.e + tk.w)) self.lou_inc = tk.button(self) self.lou_inc["text"] = ">" self.lou_inc["command"] = self.louinc self.lou_inc.grid(row=1, column=3, sticky=(tk.n, tk.s, tk.e, tk.w)) def loudec(self): self.setlounge -= 0.5 print ("%s" % self.setlounge) fo = open("/home/tony/code/tempreg.txt", "w") fo.write("%s" % self.setlounge) fo.close() def louinc(self): self.setlounge += 0.5 print ("%s" % self.setlounge) fo = open("/home/tony/code/tempreg.txt", "w") fo.write("%s" % self.setlounge) fo.close() root = tk.tk() root.title("heating controller") root.geometry("320x240") app = application(master=root) app.mainloop()` many thanks
looking @ this post, seems it's necessary supply weight argument rowconfigure , columnconfigure if want widget stretch fit environment. in case, have twice - once widgets in frame, , once frame itself. don't forget make frame sticky, too.
import tkinter tk class application(tk.frame): def __init__(self, master=none): self.setlounge = 21.0 tk.frame.__init__(self, master) master.columnconfigure(0, weight=1) master.rowconfigure(0, weight=1) self.grid(sticky="news") self.createwidgets() def createwidgets(self): self.lou_dec = tk.button(self) self.lou_dec["text"] = "<" self.lou_dec["command"] = self.loudec self.lou_dec.grid(row=1, column=1, sticky=("n", "s", "e", "w")) self.lblloutemp = tk.label(self) self.lblloutemp["text"] = self.setlounge self.lblloutemp.grid(row=1, column=2, sticky=(tk.n + tk.s + tk.e + tk.w)) self.lou_inc = tk.button(self) self.lou_inc["text"] = ">" self.lou_inc["command"] = self.louinc self.lou_inc.grid(row=1, column=3, sticky=(tk.n, tk.s, tk.e, tk.w)) in range(1,4): self.columnconfigure(i, weight=1) self.rowconfigure(1, weight=1) def loudec(self): self.setlounge -= 0.5 print ("%s" % self.setlounge) fo = open("/home/tony/code/tempreg.txt", "w") fo.write("%s" % self.setlounge) fo.close() def louinc(self): self.setlounge += 0.5 print ("%s" % self.setlounge) fo = open("/home/tony/code/tempreg.txt", "w") fo.write("%s" % self.setlounge) fo.close() root = tk.tk() root.title("heating controller") root.geometry("320x240") app = application(master=root) app.mainloop() 
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