Tkinter

Question 1

Import Tkinter
Create a window
Put text at the top of the box
Start the box

Answer 1

create root window

from tkinter import *

root = Tk()

root.title(“Welcome to GameShark”)
root.geometry(‘350x200’)

root.mainloop()

Question 2

What is a label? Add one.
Don’t forget to add the function/class? that tells it where to go in the window!

Answer 2

create root window

A label is just a line of text.

from tkinter import *

root = Tk()

root.title(“Welcome to GameShark”)
root.geometry(‘350x200’)

lbl = Label(root, text = “GameShark has a bid DICK”)
lbl.grid()

root.mainloop()

Question 3

Create a button, that when clicked, displays your text.
Don’t forget, you have to add code to tell the button and your label where to go now!

Answer 3

from tkinter import *

root = Tk()

root.title(“Welcome to GameShark”)

root.geometry(‘350x200’)

lbl = Label(root, text = “Gameshark is the BEST”)
lbl.grid()

txt = Entry(root, width=10)
txt.grid(column=1, row=0)

def clicked():
res = “you wrote “ + txt.get()
lbl.configure(text = res)

btn = Button(root, text = “Enter”, fg = “red”, command=clicked)

btn.grid(column=2, row=0)

root.mainloop()

Question 4

Add a menu bar to your gui

Answer 4

add menu bar in root window

from tkinter import *

root = Tk()

root.title(“Welcome to Gameshark”)
root.geometry(‘350x200’)

#new item in menu bar labelled ‘New’
#add more items to the menu

menu = Menu(root)
item = Menu(menu)
item.add_command(label=’New’)
menu.add_cascade(label=’File’, menu=item
root.config(menu=menu)

lbl = Label(root, text = ‘Is GameShark the best?”)
lbl.grid()

#below that is where it’s placed
txt = Entry(root, width=10)
txt.grid(column=1, row=0)

def clicked():

res = "You wrote " + txt.get()
lbl.configure(text = res)

btn = Button(root, text = “Click me”, fg = “red”, command=clicked)
btn.grid(column=2, row=0)

root.mainloop()

Question 5

Create a background

Answer 5

if we don’t use pack, the next label will just go underneath the image

(toolkit interface)

from tkinter import *

root = Tk()
root.title(“GameShark”)
root.geometry(“500x500”)

lbl = Lable(root, text = “Hello, and welcome”, font=(‘Georgia’, 24,)
lbl.pack()

image_path = PhotoImage(file=r”C:\image\myimage.png”)
bg_image = Label(root, image=image_path)

# 0.5 means make image take up 50% of screen, 1 means the whole screen.

bg_image.place(relheight=0.5,relwidth=1)

Question 6

Add Sounds

Answer 6

from tkinter import *
from playsound import playsound

def play():
playsound(r”C:\Users\joshc\Downloads\sword-sound-2-36274.mp3”)
root = Tk()
root.title(“GameShark”)
root.geometry(“500x500”)

menubar = Menu(root)
file_menu = Menu(menubar, tearoff=0)
file_menu.add_command(label=”Share with Brian”)
menubar.add_cascade(label=”Sharing”, menu=file_menu)

btn = Button(root, text=”Cut Noise”, command=play)
btn.grid(column=0,row=0)
root.config(menu=menubar)
root.mainloop()

Question 7

What does pack mean?
Use it

Answer 7

Pack this in the first available spot. This is unsophisticated.
This will keep your text on the same spot no matter how you resize, which is nice.

lbl.pack()

Question 8

How do you use grid

Answer 8

lbl1.grid(column=0,row=0)
lbl2.grid(row=1,column=5)
This will just put this in column one because it’s all relative to the first grid.

You could actually create this space one way doing something like this:
lbl3 = Label(root, text=””)
lbl3.grid(row=1, column=1)

Question 9

Create a disabled button

Resize button

Answer 9

btn = Button(root, text=”click me”, state=DISABLED)

btn = Button(root, text=”click me”, padx=50, pady=50)

Question 10

Create an entry widget and give it a width and height and give it a border

Put some default text inside your text box.

What function do you use to retrieve your entered text?

Answer 10

e = Entry(root, width=50,height=50,borderwidth=10)
e.insert(0, “Enter your name: “)
e.get()

Question 11

Create a calculator

We’ll have a row of three numbers, so we’ll want to have the entry span those columns

Answer 11

Next time you do this, be sure to take the bits that you don’t know from the cal.py file and add them to flash cards so you’ll know the pieces of how to do this in the future.

https://www.youtube.com/watch?v=YXPyB4XeYLA

Question 12

When placing an “Entry” widget, what option would you add if you wanted the box to span accross 3 buttons below it?

Answer 12

e.grid(row=0, column=0, columnspan=3, padx=10, pady=10)

Question 13

Create a global variable if function is called.

Answer 13

def button_divide():
global math
math = “division”

Question 14

Delete what’s in an entry field

Answer 14

e = Entry()
e.delete(0, END)

Question 15

What option allows you to input an argument from a button onto a function?

Answer 15

command=lambda: button_click(1)

Question 16

To resize a button, where do you add your padx and pady

Answer 16

Directly to the button, not the grid, the grid will just create space.

Question 17

What is an Icon file called?

Answer 17

ICO which is just a PNG

Question 18

Add an icon and an exit button

Answer 18

from tkinter import *

root = Tk()
root.title(“Gameshark”)
root.iconbitmap(r”C:\Users\joshc\Downloads\1805914c0f1e9c653168d23775b91be4.ico”)

button_quit = Button(root, text=”Exit Program”, command=root.quit)
button_quit.pack()
root.mainloop()

Question 19

Add an image, because the built in image thingy only does two types of images

Answer 19

pip install Pillow
pip freeze (look for Pillow)

from PIL import ImageTk,Image

my_img = ImageTk.PhotoImage(Image.open(“aspen.png”)
my_label = Label(image=my_img)
my_label.pack

you also don’t need to specify directories if in same folder as program.

Question 20

Say you have created and image but you want it removed when you click a button, what would you do to the label to make it work?

Answer 20

lbl.grid_forget()

Question 21

If you wanted to create a label that said “image 1 of 3” that had a border that made it look sunken and have it situated on the right hand portion of the screen?

Answer 21

lbl = (root, text=”image 1 of 3”, bd=1, relief=SUNKEN, anchor=E)

Question 22

What would you put if you wanted to stretch your label across your column span?

Answer 22

status.grid(row=2, column=0, columnspan=3, sticky=W+E)

Remember that columnspan is doesn’t stretch it just adjusts the placement, I believe.

Question 23

Create a frame that surrounds a button

Answer 23

The only time you can use both frames and grids in your code is when working with frames and what they surround

frame = LabelFrame(root, text”this”, padx=5, pady=5)
frame.pack(padx=10, pady=10)

b = button(frame, text=”button”)
b.grid(column=0, row=0)

Question 24

Create a variable in a radio button, define what type of variable it is and then retrieve it via a label

Answer 24

r = IntVar()

btn = Radiobutton(root, text=”one”, variable=r, value=1, command=clicked)

def clicked():
lbl = Label(root, text=r.get())
lbl.grid()

Question 25

You have created the following list of tuples: list = [ ("pepperoni", "pepperoni"), ("cheese", "cheese") ] using a for loop, create 2 radio buttons that supply the name of the topping and supply a value of the topping to go into the "pizza" variable

Answer 25

for text, mode in list: Radiobutton(root, text=text, variable=pizza, value=mode).pack

Question 26

Create a yes or no button If we put it into a variable what does it translate as? How can you used this for your code?

Answer 26

from tkinter import messagebox 1 yes 2 no We can put this in an if statement to do different things. def clicked() response = messagebox.askyesno("Popup name","popup body") Label(root, text=response).pack() if response == 1:

Question 27

What are the different options for popups in Tkinter?

Answer 27

from tkinter import messagebox messagabox.showinfo messagabox.showwarning messagabox.showerror messagabox.askquestion messagabox.askokcancel messagabox.askyesno These will all return 1, 0, or yes, ok, no, etc.

Question 28

What command would you use if your wanted to create an additional second window When you create a button to create a second window it will be created but your pictures won't be. How do we fix this How do we create a button to close this?

Answer 28

def open() global top global my_img top = Toplevel() top.title("title") top.iconbitmap('c:/gui/codemy.ico') my_img = ImageTk.PhotoImage(Image.open("images/aspen.png") my_label = Label(top, image=myi_img).pack() btn2 = Button(top, text="Close", command=top.destroy).pack() -in your function top.destroy() make my_img a global variable

Question 29

If you wanted to have tkinter open your file explorer, let you select a file "based on what you dictate you want" and to use that file what would you import and how would you use it?

Answer 29

What we'll do is use fileddialog to let you pick a file, then we'll print root.filename (this just shows the file path) next we'll convert to an image (using root.filename as the path, then we'll create a label for it and pack so it appears on the screen. from tkinter import filedialog def open(): global my_image root.filename = filedialog.askopenfilename(initialdir="/Users", title="Select a file", filetypes=(("png files", "*.png"),("all files", "*.*"))) my_label = Label(root, text=root.filename).pack() my_image = ImageTk.PhotoImage(Image.open(root.filename)) my_image_label = Label(image=my_image).pack() btn = Button(root, text="Select Image", command=open).pack()

Question 30

How would you create a slider (horizontal and vertical)?

Answer 30

hor = Scale(root, from_=0, to=400, orient=HORIZONTAL) hor.pack() ver = Scale(root, from_=0, to=400) ver.pack()

Question 31

Create a checkbox that sends it's value to a variable give the box a different value than the standard 0 or 1 If you change the value, the widget will not work properly, fix this issue

Answer 31

var = StringVar() c = Checkbutton(root, text="Check me out", variable=var, onvalue="on" offvalue="off") c.deselect() c.pack()

Question 32

Create a list of days and put it in a list, put that list of days in a drop down menu. Create a string variable named clicked, give that variable a default value of Monday. This variable will store what day you select

Answer 32

days = [ "monday", "tuesday", "Wednesday", "Thursday", "Friday" ] clicked = StringVar() clicked.set("Monday") drop = OptionMenu(root, clicked, *days)

Question 33

What are the four database types in SQLLite?

Answer 33

text integer reel - decimal null - does or doesn't exist blob - images/videos

Question 34

Create a SQLLite database and call it address_book.db Next create the below columns that should be the text data type and the final one that should be an integer: first_name last_name address city state zipcode Put these all in a table named "addresses"

Answer 34

import sqlite3 Create/open a db conn = sqlite3.connect(''address_book.db) create a cursor, to send off and do stuff c = conn.cursor() c.execute("""CREATE TABLE addresses ( first_name text, last_name text, address text, city text, state text, zip integer )""") Commit changes conn.commit() Close connection conn.close()

Question 35

What does ipadx/ipady do?

Answer 35

spans it from the inside

Question 36

Create a button for your address_book.db that allows you to insert data into it. Let's say we created f_name = Entry(root, width=30) already and we want to send this first name to our database. Have this button delete the field in your entry afterword Next create a query function Now Delete a record Now select an oid to use in a function update a record

Answer 36

# There's also fetchmany(12), fetchnone, etc def delete(): conn = sqlite3.connect("admin.db") c = conn.cursor() c.execute("""DELETE from addresses WHERE oid=""" + o.get()) conn.commit() conn.close() def query(): conn = sqlite3.connect("admin.db") c = conn.cursor() c.execute("SELECT * FROM addresses") record = c.fetchall() lbl = Label(root, text=record) lbl.grid() conn.commit() conn.close() def submit(): conn = sqlite3.connect("admin.db") c = conn.cursor() c.execute("INSERT INTO addresses VALUES (?, ?)", (f.get(), l.get()) ) conn.commit() conn.close() f.delete(0, END) l.delete(0, END) def update(): global update conn = sqlite3.connect("admin.db") c = conn.cursor() c.execute("UPDATE addresses SET f_name=?, l_name=?", (f.get(), l.get())) conn.commit() conn.close() f.delete(0, END) l.delete(0, END) conn = sqlite3.connect("admin.db") c = conn.cursor() c.execute("""CREATE TABLE IF NOT EXISTS addresses( f_name text, l_name text ) """ ) conn.commit() conn.close()

Question 37

create a tab What would you do if you only wanted space above, but not below using pady

Answer 37

\t pady = (10, 0)

Question 38

How do you make your gui unable to be resized

Answer 38

root.resizable(width=False, height=False)

Question 39

Import what you would need to use an api Use the api

Answer 39

import requests import json api_request = requests.get("https://yourapi.org") api = json.loads(api_request.content) if you print the api,