from tkinter import *
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib.figure import Figure


class SampleApp(Tk):
    def __init__(self):
        Tk.__init__(self)
        self._frame = None
        self.switch_frame(StartPage)
        menubar = MenuBar(self)
        self.config(menu=menubar)

    def switch_frame(self, frame_class):
        """Destroys current frame and replaces it with a new one."""
        new_frame = frame_class(self)
        if self._frame is not None:
            self._frame.destroy()
        self._frame = new_frame
        self._frame.pack()
        
    def Pie(self):
         
         figure2 = Figure(figsize=(5,4), dpi=80) 
         subplot2 = figure2.add_subplot(111) 
         labels2 = 'grg', 'grr', 'grgr', 'rgr'
         pieSizes = [15, 30, 45, 10] 
         explode2 = (0, 0.1, 0,0)  
         subplot2.pie(pieSizes, explode=explode2, labels=labels2, autopct='%1.1f%%', shadow=True, startangle=90) # create the pie chart based on the input variables x1, x2, and x3
         subplot2.axis('equal')  
         pie2 = FigureCanvasTkAgg(figure2, self) 
         pie2.get_tk_widget().pack()
         
 
    
class MenuBar(Menu):
    def __init__(self, master):
        Menu.__init__(self, master)

        fileMenu = Menu(self, tearoff=False)
        self.add_cascade(label="Menu",underline=0, menu=fileMenu)
        fileMenu.add_command(label="back to menu", underline=1, command=lambda: master.switch_frame(StartPage))


class StartPage(Frame):
    def __init__(self, master):
        Frame.__init__(self, master)
        master.geometry("500x400+350+400")
        start_label = Label(self, text="Welcome")
        page_1_button = Button(self, text="Open page one",
                                  command=lambda: master.switch_frame(PageOne))
        start_label.pack(side="top", fill="x", pady=10)
        page_1_button.pack()
        
        
        
      
class PageOne(Frame):
    def __init__(self, master):
        Frame.__init__(self, master)
        master.geometry("500x600+350+400")
        hashtag = StringVar()
        recherche = Entry(self,textvariable=hashtag)
        recherche.pack(pady = 20)
        page_1_label = Label(self, text="choose key word")
        start_button = Button(self, text="Validate",
                                 command= lambda : master.Pie())
        page_1_label.pack(side="top", fill="x", pady=10)
        start_button.pack()
       
        
   

if __name__ == "__main__":
    app = SampleApp()
    app.mainloop()

def Pie(self): 

class PageOne(Frame): 

-
Edité par Cyril_Mg 20 mai 2018 à 23:17:21

Je ne comprends pas, chez moi ça reste dans la frame PageOne. Un autre exemple où ça foire ?

-
Edité par Cyril_Mg 23 mai 2018 à 17:54:05