Photo wont appear in tkinter despite global declaration - python

Hello I am building a tkinter app and need to open photos within a function. Upon research I saw that you need to make the image = to a variable to keep track of it and use global. Despite doing these things my image still wont show up
can anyone help??
Here is my code
#when one of the catagory buttons is pressed this func is called opening a new window with
#a button for all images
def open_catagory(button_name):
fourth_window = Toplevel()
global fourth_pics
global fourthview
global CC
fourth_pics = (
"C:\\Users\\link\\OneDrive\\Desktop\\python stuff\\screenshot example\\Snapshots by catagory\\"+ str(button_name))
CC = [f for f in listdir(fourth_pics)]
print(CC)
fourthview = Image.open(
fourth_pics+"\\" + str(CC[-1]))
fourthveiw = fourthview.resize((800, 800), Image.ANTIALIAS)
fourthveiw = ImageTk.PhotoImage(fourthveiw)
fourth_window.config(height=1800, width=1800, bg="chocolate1")
fourthw_picture_box = Label(fourth_window, height=800, width=800,image = fourthveiw)
fourthw_picture_box.place(x=800, y=100)
count = 0
x = 1
y = 0
catagorypath = "C:\\Users\\link\\OneDrive\\Desktop\\python stuff\\screenshot example\\Snapshots by catagory\\" + str(button_name)
for g in listdir(catagorypath):
count += 1
for I in listdir(catagorypath ):
screenshot_snap = Button(fourth_window,text = str(I), bg = "chocolate3",activebackground = "white",padx= 80,pady =10)
screenshot_snap.grid(column = 4, row = int(x),rowspan = 5,columnspan = 5,padx = 50,pady =10)
x += 10
if y < count:
y += 1

Related

Infinite loop due to calling functions

I am attempting to make Minesweeper in python using Tkinter. I have completed all of the initial logic but I am having trouble with the squares with zero surrounding bombs. The program is meant to open all of the surrounding squares when a square with zero surrounding bombs is clicked. The problem here is that it somehow creates an infinite loop. This may be due to the fact that I am calling the function click multiple times using a for loop but I am not sure if this is correct or how to fix it.
My code so far:
import tkinter as tk
from random import choices
from math import floor
##•
def openSurroundings(i):
trash = [i+1, i+8, i+9, i+10, i-1, i-8, i-9, i-10]
for a in trash:
if a<81:
click(floor(a/9), a-((a//9)*9))
def click(row, col):
text = numbers[row][col]
widget = buttons[row][col]
widget.grid_forget()
clickSurrounding = False
if text == 0:
text = ''
clickSurrounding = True
lab = tk.Label(window, text = text, height = 2, width = 5)
lab.grid(row = row, column = col)
if clickSurrounding == True:
openSurroundings((row*9)+col)
def placeBombs():
global widgets, bombs
numOfBombs = 10
widgets = list(range(1, (len(buttons)**2)+1))
bombs = choices(widgets, k = numOfBombs)
def findNumbers():
global numbers
numbers = []
lis_num = []
for i in widgets:
if i in bombs:
lis_num.append('•')
continue
else:
trash = [i+1, i+8, i+9, i+10, i-1, i-8, i-9, i-10]
num = 0
for a in trash:
if a > 0 and a in bombs:
num += 1
lis_num.append(num)
for i in range(0, len(lis_num), 9):
numbers.append(lis_num[i:i + 9])
window = tk.Tk()
window.title('Minesweeper')
sideLen = 9
row_index = 0
cell_index = 0
buttons = []
while row_index != sideLen:
button_row = []
while cell_index != sideLen:
button = tk.Button(window, width=5, height = 2, command=lambda row_index=row_index, cell_index=cell_index: click(row_index, cell_index))
button_row.append(button)
button.grid(row=row_index, column=cell_index)
cell_index += 1
buttons.append(button_row)
cell_index = 0
row_index += 1
placeBombs()
findNumbers()

Button takes up full screen no matter what

Hi I am making a tkinter program but have run into this issue.
I am trying to use the grid method to center a load of buttons in the middle of the screen(The amount of buttons will vary dynamically) However I cant keep the buttons to a reasonable size I have followed the advice of someone who had a similar problem however I cant figure out what I am doing differently as it hasn't solved my issue.
Here is my code (it uses a directory pathway so it won't work for the reader but maybe you can spot what I am doing wrong)
ef open_win3():
global third_window
third_window = Toplevel()
third_window.config(height = 1800,width = 1800, bg = "chocolate1")
create_thirdwindow_button()
def create_thirdwindow_button():
bf = Frame(third_window,bg = "blue")
bf.grid(row=0, column=0,sticky="NESW")
bf.rowconfigure(0,weight = 1)
bf.columnconfigure(0,weight =1)
third_window.grid_rowconfigure(0, weight=1)
third_window.grid_columnconfigure(0, weight=1)
count = 0
x = 1
y = 0
mypath = "C:\\Users\\link\\OneDrive\\Desktop\\python stuff\\screenshot example\\Snapshots by catagory"
for g in listdir(mypath):
count += 1
for I in listdir(mypath):
btp = mypath +"\\"+str(I)
print(btp)
screenshot_snap = Button(bf,text = str(I),width = 1,height = 1, bg = "chocolate3",activebackground = "white",padx= 10,pady =10)
screenshot_snap.grid(sticky = "NESW")
screenshot_snap.grid_rowconfigure(0, weight=1)
screenshot_snap.grid_columnconfigure(0, weight=1)
x += 10
if y < count:
y += 1
Thanks a lot for any help!

Is there a way to write superscripts in python in a GUI?

This is my current code and it displays in a window but literally prints it the way I've typed it (obviously). But is there a way to write these so they are displayed as powers/exponents?
"
questionNum = 0
#SET QUESTIONS HERE
questions = [0,"Given that y = x^4 + 6x^1/2, find dy/dx","Write down the value of 125^1/3","Fully factorise 9x^2 - 25","Find the value of 8^5/3"]
answer1 = [0,"4x^4 + 3x^1/2","25","(3x-5)(3x+5)","1/2"]
answer2 = [0,"4x^3 + 6x^1/2","1/5","(3x+5)(3x+5)","Answer 2 (4)"]
answer3 = [0,"4x^3 + 6x^-1/2","5","(3x-5)(3x-5)","Answer 3 (4)"]
answer4 = [0,"4x^3 + 1/2x^-3/2","125","(9x+5)(x-5)","Answer 4 (4)"]
This is what it looks like:
rightanswers = [0,1,2,3,4] #These are the correct answers
"
This is the bit that needs to be changed. I've added the rest just in case you need any of it to see what's going on:
from tkinter import * #The TKinter module imported in order to create the menus
import sys #Invoke functions and statements - allows operations to work and searches for named modules i.e. TKinter
global questionNum #Connections between functinos and arrays
questionNum = 0
#SET QUESTIONS HERE
questions = [0,"Given that y = x^4 + 6x^1/2, find dy/dx","Write down the value of 125^1/3","Fully factorise 9x^2 - 25","Find the value of 8^5/3"] #This is the question bank which has been set up as an array
answer1 = [0,"4x^4 + 3x^1/2","25","(3x-5)(3x+5)","1/2"] #These are the possible answers - this is where multiple choice answers would go
answer2 = [0,"4x^3 + 6x^1/2","1/5","(3x+5)(3x+5)","Answer 2 (4)"]
answer3 = [0,"4x^3 + 6x^-1/2","5","(3x-5)(3x-5)","Answer 3 (4)"]
answer4 = [0,"4x^3 + 1/2x^-3/2","125","(9x+5)(x-5)","Answer 4 (4)"]
rightanswers = [0,1,2,3,4] #These are the correct answers
normal = Tk() #Build the TKinter
normal.geometry("850x350") #Set the size of the normal chess form to 850x350
normal.title("Normal Chess") #Sets a title for the normal chess form
normal.columnconfigure(1,minsize = 300) #This is whereabouts the question and answers are displayed
questionVar = StringVar() #Question will be a string
answerVar = IntVar() #Answers will be numbers
answerVar.set(1) #Questions can only have one solution
aText = StringVar() #Text for the answers - options
bText = StringVar()
cText = StringVar()
dText = StringVar()
qNoText = StringVar() #Questions text which is displayed to the user
questionText = StringVar()
normal.withdraw() #Allows the user to only select one option
title = Tk() #Builds the TKinter
title.title("Chess") #Title of the form
title.geometry("300x300") #The size of the image
watermark = PhotoImage(file = "watermark.gif") #Link to the image itself
Label(image = watermark).place(x=0,y=0,relwidth=1,relheight=1) #Places the image onto the form set on the x,y coordinates
title.withdraw()
menu = Tk() #Builds the TKinter
menu.title("Main Menu") #Displays 'Main Menu' on screen
menu.geometry("400x350") #Size of the form
p1var = StringVar() #Sets a variable for Player 1 and Player 2
p2var = StringVar()
def Quit(): #Quit function - allows the user to exit the program
menu.destroy()
title.destroy()
normal.destroy()
sys.exit() #Gets rid of all the modules
def play():
title.deiconify()
Label(title,text = "Enter Details:",font = ("Calibri",25)).grid(row = 1, column = 1)
#'Enter Details' font, size and location on the form
Label(title,text = "CHESS",font = ("Calibri",50)).grid(row = 0,column = 1)
#'CHESS' font, size and location on the form
Label(title, text = "Player 1: ").grid(row = 2,column = 0)
#'Player 1' font, size and location on the form
Entry(title,textvariable = p1var,width = 30).grid(row = 2,column = 1)
#Allows the user to input a string for the player 1 name
Label(title, text = "Player 2: ").grid(row = 3,column = 0)
#'Player 2' font, size and location on the form
Entry(title,textvariable = p2var,width = 30).grid(row = 3,column = 1)
#Allows the user to input a string for the player 2 name
Label(title,text = "Select Game Mode: ").grid(row = 4,column = 1)
#'Select Game Mode: ' font, size and location on the form
Button(title,command = lambda: playNormalChess(p1var.get(),p2var.get()),text = "Normal Chess").grid(row = 6,column = 1,sticky = W)
#Button for normal chess
Button(title,command = lambda: playSpeedChess(p1var.get(),p2var.get()),text = "Speed Chess").grid(row = 6,column = 1,sticky = E)
#Button for speed chess
Button(title,command = instructions,text = "Instructions").grid(row = 7,column = 1,pady =10)
#Button for instructions
def playNormalChess(p1,p2):
normal.deiconify()
t = Label(textvariable = qNoText,font = ("Arial",50)).grid(row = 0,column = 1,sticky = W,columnspan=2,padx = 20,pady =10)
#Functions for selection
q =Label(textvariable = questionVar,font = ("Arial",30)).grid(row = 1,column = 1,sticky = W,columnspan=2,padx = 20,pady =10)
#Font and size the questions are set in
a=Radiobutton(variable = answerVar,value = 1,textvariable = aText,font = ("Arial",18)).grid(row = 3,column = 1,pady =5,padx = 20,sticky = W)
#These are the radio buttons which are linked to the answers - set the font and the size of the text
b=Radiobutton(variable = answerVar,value = 2,textvariable = bText,font = ("Arial",18)).grid(row = 4,column = 1,padx = 20,sticky = W)
c=Radiobutton(variable = answerVar,value = 3,textvariable = cText,font = ("Arial",18)).grid(row =5,column = 1,pady = 5,padx = 20,sticky = W)
d=Radiobutton(variable = answerVar,value=4,textvariable = dText,font = ("Arial",18)).grid(row = 6,column = 1,padx = 20,sticky = W)
Button(text = "Submit",command = confirm).grid(row =0,column = 3,sticky = W,pady = 10) #Submit button to confirm their answers
newQuestion() #Calls the function for a new question
def confirm():
if messagebox.askyesno('Confirm','Are You Sure?'): #This is the conformation of the correct answer for the user
try:
if answerVar.get() == rightanswers[questionNum]: #If they select yes to confirm they are happy with the selection
# - it checks their answer with the correct answer and prints 'Right' or 'Wrong' depending on their answer
print("Right")
else:
print("Wrong")
newQuestion() #Once their question is answered, a new question will be presented to them
except IndexError:
print("No more Questions")
def newQuestion():
global questionNum
questionNum = questionNum + 1
try:
qNoText.set("Question "+str(questionNum))
aText.set(answer1[questionNum])
bText.set(answer2[questionNum])
cText.set(answer3[questionNum])
dText.set(answer4[questionNum])
questionVar.set(questions[questionNum])
except IndexError:
print("No more questions")
Label(menu,text = "AS Maths Chess",font = ("Arial",37)).pack(pady = 20)
Button(menu,text = "Play",background = "black",foreground = "white",font = ("Arial",20),command = play).pack(ipadx = 80,ipady = 20, pady = 10)
Button(menu,text = "Quit",font = ("Arial",20),command = Quit).pack(ipadx = 80,ipady = 20, pady = 10)
Unicode has superscript numerals, arithmetic operators, and some letters in the BMP, which is supported by tcl/tk. See Wikipedia. Within those constraints, and given a supporting font, the answer is yes. On Windows, running from IDLE, the following works nicely and looks nice, though I would want the tk font larger to see the superscript easily with my eyes.
import tkinter as tk
root = tk.Tk()
# "4x^4 + 3x^1/2"
t1 = "4x\u2074 + 3x\u207b\u00b2" # \u excapes, if needed
t2 = "4x⁴ + 3x⁻²"
label = tk.Label(root, text=t2)
label.pack()

Why won't my .gif files show up when I call them using PhotoImage?

from tkinter import *
from random import *
from functools import partial
class Game:
def __init__(self):
self.root = Tk()
self.frame = Frame(width = 574, height = 574)
self.frame.grid(columnspan = 30, rowspan = 30)
self.minex = []
self.miney = []
self.clickx = 0
self.clicky = 0
blank = PhotoImage(file = 'C:\\Users\\PC\\Desktop\\Python Programs\\Minesweeper\\blank.gif')
for i in range(0,30):
for j in range(0,30):
button = Button(width = 15, height = 15, padx = 2, pady = 2, image = blank, command = partial(self.click, j, i))
button.grid(row = i, column = j)
self.mine_place()
self.root.mainloop()
def mine_place(self):
for i in range(0,15):
self.minex.append(randint(1,30))
self.miney.append(randint(1,30))
def click(self, j, i):
miss = PhotoImage(file = 'C:\\Users\\PC\\Desktop\\Python Programs\\Minesweeper\\miss.gif')
hit = PhotoImage(file = 'C:\\Users\\PC\\Desktop\\Python Programs\\Minesweeper\\hit.gif')
for k in range(0, len(self.minex)):
if j + 1 == self.minex[k] and i + 1 == self.miney[k]:
button = Button(image = hit)
button.grid(row = i, column = j)
else:
button = Button(image = miss)
button.grid(row = i, column = j)
app = Game()
In self.click, when I wish to create a button with this image I am given a blank image. If I create a button in init, the image comes out just fine. What is wrong?..............................................................
It looks like you're images are getting garbage collected you need to save a reference to the images after using PhotoImage.
ie - you create the image blank so save a reference as self.blank= blank and use image = self.hit

How do I refresh an image on TKinter

My function mapupdater isn't working. It seems tkinter isn't keeping a reference to the image. I tried storing the reference in an array, I tried what was suggester here How to update the image of a Tkinter Label widget?
Both don't work.
#-----Begin Global Declarations-----#
global futureonoff
futureonoff = True
#-----End Global Declarations-----#
#Create a new window
window = Tkinter.Tk()
window.wm_title("SpaceMass")
window.geometry("1000x1000")
window.self= Text(bg='black')
window.self.pack(fill="both", expand=True)
#updating map based on ISS location
def mapupdater():
global futureonoff
marker_list = []
timenowforcomputing = strftime("%Y-%m-%d %H:%M:%S", gmtime())
iss.compute(timenowforcomputing)
currentlong = iss.sublong
currentlat = iss.sublat
currentlongfloat= float(iss.sublong)
currentlatfloat= float(iss.sublat)
#convert radians to degrees with the equations 1 radian = 57.2957795 degrees
#TODO Learn how to use pi in python
currentlongfloat = round(currentlongfloat*57.2957795, 3)
currentlatfloat= round(currentlatfloat*57.2957795, 3)
print(currentlongfloat)
print(currentlatfloat)
if futureonoff == True:
futureintermenter = 0
while futureintermenter < len(long_list_3_orbits):
marker_list.append("markers=size:mid|label:F|color:blue|"+str(lat_list_3_orbits[futureintermenter])+","+str(long_list_3_orbits[futureintermenter])+"|")
futureintermenter = futureintermenter + 1
marker_list.append("markers=size:mid|label:S|color:red|"+str(currentlatfloat)+","+str(currentlongfloat)+"|")
toopenupdater = get_static_google_map("mymap2", center="42.950827,-122.108974", zoom=1, imgsize=(500,500), imgformat="gif", maptype="satellite", markers=marker_list)
#Code from https://stackoverflow.com/questions/6086262/python-3-how-to-retrieve-an-image-from-the-web-and-display-in-a-gui-using-tkint
uupdater = urllib.urlopen(toopenupdater)
raw_data_u = uupdater.read()
u.close()
b64_data_u = base64.encodestring(raw_data_u)
imgtoprint = Tkinter.PhotoImage(data=b64_data)
# from http://www.daniweb.com/software-development/python/threads/79337/putting-an-image-into-a-tkinter-thingy
# pick an image file you have .bmp .jpg .gif. .png
# load the file and covert it to a Tkinter image object
panel1.configure(image = imgtoprint)
panel1.image = imgtoprint
#updata map after 30 seconds
window.after(30000, mapupdater)
def togglemap():
global futureonoff
print(futureonoff)
if futureonoff == True:
futureonoff = False
else:
futureonoff = True
mapupdater()
print(futureonoff)
#text_file.configure(text=testing)
#Info about buttons http://effbot.org/tkinterbook/button.htm
#Parsing code from https://stackoverflow.com/questions/773797/updating-tkinter-labels-in-python
#settings for font, font size, pixel size, of the text in our GUI
#convert radians to degrees with the equations 1 radian = 57.2957795 degrees
#TODO Learn how to use pi in python
currentlongfloat = round(currentlongfloat*57.2957795, 3)
currentlatfloat= round(currentlatfloat*57.2957795, 3)
if futureonoff == True:
futureintermenter = 0
while futureintermenter < len(long_list_3_orbits):
marker_list.append("markers=size:mid|label:F|color:blue|"+str(lat_list_3_orbits[futureintermenter])+","+str(long_list_3_orbits[futureintermenter])+"|")
futureintermenter = futureintermenter + 1
marker_list.append("markers=size:mid|label:S|color:red|"+str(currentlatfloat)+","+str(currentlongfloat)+"|")
#places map into GUI
toopen = get_static_google_map("mymap2", center="42.950827,-122.108974", zoom=1, imgsize=(500,500), imgformat="gif", maptype="satellite", markers=marker_list)
#im = PIL.Image.open("mymap2.png")
#imageFile = "mymap2.png"
#Code from https://stackoverflow.com/questions/6086262/python-3-how-to-retrieve-an-image-from-the-web-and-display-in-a-gui-using-tkint
#print(toopen)
u = urllib.urlopen(toopen)
raw_data = u.read()
u.close()
b64_data = base64.encodestring(raw_data)
global imgtoprint
imgtoprint = Tkinter.PhotoImage(data=b64_data)
panel1 = Tkinter.Label(window, image=imgtoprint, bg='black')
panel1.pack(side='top', fill='both', expand='yes')
panel1.place(x=250, y=115)
b = Button(window, text="Browse for XML File", font=("Helvetica", 15), command=fileback, bg = 'black')
b.pack()
b.place(x=425,y=650)
c = Button(window, text="Toggle Orbit Prediction on Map", font=("Helvetica", 15), command=togglemap, bg = 'black')
c.pack()
c.place(x=425,y=850)
mapupdater()
window.mainloop()

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