AttributeError: 'FigureCanvasTkAgg' object has no attribute 'show'

Question

I am using tkinter to get display a histogram plotted by matplotlib. For some reason though i am getting FigureCanvasTkAgg object has no attribute show but for many it seems to be working. Besides this i even tried using .draw() and i get the error "'NoneType' object has no attribute 'get_tk_widget' " this is the data

{   "ts": 1393631990,    "visitor_uuid": "9a83c97f415601a6",    "visitor_username": null,    "visitor_source": "external",    "visitor_device": "browser"}
{   "ts": 1393631989,    "visitor_uuid": "745409913574d4c6",    "visitor_username": null,    "visitor_source": "external",    "visitor_device": "browser"}
{   "ts": 1393631989,    "visitor_uuid": "64bf70296da2f9fd",    "visitor_username": null,    "visitor_source": "internal",    "visitor_device": "browser"}

from tkinter import * 
import os
import json
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.pyplot import figure
from matplotlib.figure import Figure
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg


def openWindowForT2():
    with open('Data.json', 'r') as file1:
        df= pd.read_json(file1, lines=True)



    windowforT2 = Toplevel(window)
 
    # sets the title of the
    # Toplevel widget
    windowforT2.title("New Window")
 
    # sets the geometry of toplevel
    windowforT2.geometry("600x600")
 


    frame = Frame(windowforT2)
    frame.place(relx=0.5, rely=0.1,relwidth=0.75 ,relheight=0.1,anchor='n')

    nam = Entry(frame,font=40)
    nam.place(relwidth=0.65, relheight=1)
    button1 = Button(frame, text= "Get graph")
    button1.place(relx=0.7,relwidth=0.3,relheight=1)

    x1 = df["name"]
    plt.hist(x1, density=True, bins=30)
    plt.ylabel("time")
    plt.xlabel("val")
    
    f = Figure(figsize=(25,15))
    canvas = FigureCanvasTkAgg(f,master = windowforT2).show()
  
    canvas.get_tk_widget().pack(side= TOP, fill=BOTH,expand=True)

if i just do plt.show() im able to see that histogram is being produced but i want it to be inside the tkinter window. can someone tell me why this is causing an error?

Answer 1

You can use the draw() instead of show() attribute.