how can I get the value and placeholder in "optMenFunc" function from each iteration as value changes as I am working on below mentioned code, which has four classes, SampleApp, StartPage, PageOne, PageTwo. Page one has optionmenu with for loop. I am following the answer of this: Switch between two frames in tkinter
import tkinter as tk
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (StartPage, PageOne):
page_name = F.__name__
frame = F(parent=container, controller=self)
self.frames[page_name] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame("StartPage")
def show_frame(self, page_name):
'''Show a frame for the given page name'''
frame = self.frames[page_name]
frame.tkraise()
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is the start page")
label.pack(side="top", fill="x", pady=10)
button1 = tk.Button(self, text="Go to Page One",
command=lambda: controller.show_frame("PageOne"))
button2 = tk.Button(self, text="Go to Page Two",
command=lambda: controller.show_frame("PageTwo"))
button1.pack()
button2.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is page 1")
label.pack(side="top", fill="x", pady=10)
button = tk.Button(self, text="Go to the start page",
command=lambda: controller.show_frame("StartPage"))
button.pack()
placeHolders = ['one', 'two']
for placeHolder in placeHolders:
self.options = tk.StringVar()
self.options.set('select')
self.menu = tk.OptionMenu(self, self.options, "miss", "mr", "mrs", command = self.optMenFunc)
self.menu.pack()
def optMenFunc(self, value):
print("i need to print here value with placeholder")
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
You can use a lambda similar to how you did in the other commands.
self.menu = tk.OptionMenu(self, self.options, "miss", "mr", "mrs", command=lambda v, ph=placeHolder: self.optMenFunc(v, ph))
and
def optMenFunc(self, value, placeholder):
print(f"value:{value} and placeholder:{placeholder}")
Note:
A: command=lambda v: self.optMenFunc(v, placeHolder)
B: command=lambda v, ph=placeHolder: self.optMenFunc(v, ph)
You have to set the argument in the lambda, as (B) is. If you do it the (A) way, placeHolder will equal whatever it's final iteration value is, regardless of which OptionMenu you select from. By making it an argument of the lambda you are saving it's current iteration value to ph.
Related
I had a problem with passing a variable from one page to the other, its works now, but if I want to use it on a label, it writes PA_VAR0. I read that ".get()" should be used in that case, but it still doesn't work that way. (with .get() it don't even passes the variable). I tried to set a new variable with tk.StringVar() function, but it still didn't work
import tkinter as tk
from tkinter import ttk
class example(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.shared_data = {
"variable": tk.StringVar()
}
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (page1, page2):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(page1)
def get_page(self, page_class):
return self.frames[page_class]
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class page1(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = ttk.Label(self, text="first page")
label.grid(row=0, column=4, padx=10, pady=10)
button1 = ttk.Button(self, text="turn page",
command=lambda: self.pageturn())
button1.grid(row=3, column=1, padx=10, pady=10)
def pageturn(self):
self.controller.shared_data["variable"] = 'string i wanna pass'
print("variable set here: ", self.controller.shared_data["variable"])
self.controller.show_frame(page2)
class page2(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = ttk.Label(self, text=self.controller.shared_data["variable"])
label.grid(row=0, column=4, padx=10, pady=10)
label = ttk.Label(self, text=self.controller.shared_data["variable"].get())
label.grid(row=1, column=4, padx=10, pady=10)
button3 = ttk.Button(self, text=self.controller.shared_data["variable"],
command=lambda: print(self.controller.shared_data["variable"]))
button3.grid(row=8, column=10, padx=10, pady=10)
button2 = ttk.Button(self, text="if fuction sees variable",
command=lambda: self.ifok())
button2.grid(row=9, column=10, padx=10, pady=10)
def ifok(self):
if self.controller.shared_data["variable"] == 'string i wanna pass':
print("ok")
app = example()
app.mainloop()
You overwrite self.controller.shared_data["variable"] by a string inside pageturn():
self.controller.shared_data["variable"] = 'string i wanna pass'
You should use .set() instead:
self.controller.shared_data["variable"].set('string i wanna pass')
Full updated code:
import tkinter as tk
from tkinter import ttk
class example(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.shared_data = {
"variable": tk.StringVar()
}
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (page1, page2):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(page1)
def get_page(self, page_class):
return self.frames[page_class]
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class page1(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = ttk.Label(self, text="first page")
label.grid(row=0, column=4, padx=10, pady=10)
button1 = ttk.Button(self, text="turn page",
command=lambda: self.pageturn())
button1.grid(row=3, column=1, padx=10, pady=10)
def pageturn(self):
self.controller.shared_data["variable"].set('string i wanna pass') ### changed = to .set()
print("variable set here: ", self.controller.shared_data["variable"].get()) ### called .get()
self.controller.show_frame(page2)
class page2(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = ttk.Label(self, textvariable=self.controller.shared_data["variable"]) ### changed text to textvariable
label.grid(row=0, column=4, padx=10, pady=10)
label = ttk.Label(self, text=self.controller.shared_data["variable"].get())
label.grid(row=1, column=4, padx=10, pady=10)
button3 = ttk.Button(self, textvariable=self.controller.shared_data["variable"], ### changed text to textvariable
command=lambda: print(self.controller.shared_data["variable"].get()))
button3.grid(row=8, column=10, padx=10, pady=10)
button2 = ttk.Button(self, text="if fuction sees variable",
command=lambda: self.ifok())
button2.grid(row=9, column=10, padx=10, pady=10)
def ifok(self):
if self.controller.shared_data["variable"].get() == 'string i wanna pass': ### called .get()
print("ok")
app = example()
app.mainloop()
I am trying to add a variable inside of class, and also grid it with the e1.grid() command. I can create the variable inside of the class but for some reason I can't grid the variable and I can't grid text either. Is there any way to solve this problem?
import tkinter as tk
from tkinter import font as tkfont
from tkinter import Entry
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.title_font = tkfont.Font(family='Helvetica', size=18,
weight="bold", slant="italic")
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (StartPage, PageOne):
page_name = F.__name__
frame = F(parent=container, controller=self)
self.frames[page_name] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame("StartPage")
def show_frame(self, page_name):
'''Show a frame for the given page name'''
frame = self.frames[page_name]
frame.tkraise()
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is the start page",
font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button1 = tk.Button(self, text="Go to Page One",
command=lambda:
controller.show_frame("PageOne"))
button1.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is page 1",
font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button = tk.Button(self, text="Go to the start page",
command=lambda:
controller.show_frame("StartPage"))
button.pack()
e1 = Entry(self)
e1.grid(row=0, column=1)
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
you can't use pack with grid together.
'''
e1 = Entry(self).pack()
#e1.grid(row=0, column=1)
'''
so...
import tkinter as tk
from tkinter import font as tkfont
from tkinter import Entry
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.title_font = tkfont.Font(family='Helvetica', size=18,
weight="bold", slant="italic")
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (StartPage, PageOne):
page_name = F.__name__
frame = F(parent=container, controller=self)
self.frames[page_name] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame("StartPage")
def show_frame(self, page_name):
'''Show a frame for the given page name'''
frame = self.frames[page_name]
frame.tkraise()
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is the start page", font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button1 = tk.Button(self, text="Go to Page One",command=lambda: controller.show_frame("PageOne"))
button1.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is page 1", font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button = tk.Button(self, text="Go to the start page",command=lambda: controller.show_frame("StartPage"))
button.pack()
e1 = Entry(self).pack()
#e1.grid(row=0, column=1)
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
update
if you want use grid method you must grid for all widgets in the relative page
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is page 1", font=controller.title_font)
label.grid(row=0, column=0)
button = tk.Button(self, text="Go to the start page",command=lambda: controller.show_frame("StartPage"))
button.grid(row=0, column=1)
e1 = Entry(self)
e1.grid(row=1, column=0)
i'm currently trying to creat a small accounting program where the user should type his earnings and expanses and the program should count it and display the differnt transactions in an secound frame. Im stuck at this point: So far ive created 6 frames where the user can switch between with buttons.
When the user click on the button "first transaction" he can entry a ammount and after he click on validate the ammount is displaying under the button.
But i want that the ammount is display at the frame "transaction overview"
After hours spending with searching the web i couln't find a way to display a functions output on a secound frame/window in the App. Thanks for your helf.
class Finanzapp(tk.Tk):
def get_page(self, classname):
for page in self.frames.values():
if str(page.__class__.__name__) == classname:
return page
return None
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
tk.Tk.wm_title(self, "Finanz Manager V2")
container = tk.Frame(self)
container.pack(side="top", fill="both", expand = True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (StartPage, PageOne, PageTwo, PageThree, Pagefour, Pagefive):
frame = F(container,self)
self.frames[F] = frame
frame.grid(row=0, column = 0, sticky="nsew")
self.show_frame(StartPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class StartPage(tk.Frame):
def __init__(self, parent, controller):
self.controller = controller
tk.Frame.__init__(self,parent)
label = tk.Label(self, text="Start Page", font=LARGE_FONT)
label.pack(pady=10,padx=10)
button1 = ttk.Button(self, text="erste Buchung",
command=lambda: controller.show_frame(PageOne)) # add a page
button1.pack()
button2 = ttk.Button(self, text="Konten",
command=lambda: controller.show_frame(PageTwo)) # add a page
button2.pack()
button3 = ttk.Button(self, text="neue Buchung",
command=lambda: controller.show_frame(PageThree)) # add a page
button3.pack()
button4 = ttk.Button(self, text="Kategorien",
command=lambda: controller.show_frame(Pagefour)) # add a page
button4.pack()
button5 = ttk.Button(self, text="Übersicht",
command=lambda: controller.show_frame(Pagefive)) # add a page
button5.pack()
button6 = ttk.Button(self, text="Diagramm",
command=lambda: controller.show_frame(StartPage)) # add a page
button6.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
self.controller = controller
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="erste Buchung", font=LARGE_FONT)
label.pack(pady=10,padx=10)
button1 = ttk.Button(self, text="zurück",
command=lambda: controller.show_frame(StartPage)) # add a page
button1.pack()
def calc():
monthly_earning = float(m_earning.get())
labelresult1 = Label(self, text='gebucht: € %.2f' % monthly_earning).pack()
label1 = Label(self, text='Enter the amount').pack()
m_earning=StringVar()
earning=Entry(self, textvariable=m_earning).pack()
buttoncalc=Button(self,text='Buchen', command=calc).pack()
class PageTwo(tk.Frame):
def __init__(self, parent, controller):
def get_page(self,PageOne):
def print_it(self):
page_one = self.controller.get_page("PageOne")
value = page_one.monthly_m_earning.get()
labelresult2 = Label(self, text='gebucht: € %.2f' % value).pack()
self.controller = controller
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="Konten", font=LARGE_FONT)
label.pack(pady=10,padx=10)
button1 = ttk.Button(self, text="zurück",
command=lambda: controller.show_frame(StartPage))
button1.pack()
I've been experimenting with some code I found here which lets you navigate between multiple tkinter GUI frames:
Navigating between multiple Tkinter GUI frames
And I'm trying to see if I can autoload a specific frame after a certain amount of time passes, (similar to a sleep screen / screensaver).
I've used the .after method and beginning right after frame.tkraise(). It calls a new class called Autoload, which is currently just a copy of the main App Class SeaofBTCapp.
It works, but the obvious problem with this is that it's popping out the frame into a new window because it's calling this again:
tk.Tk.__init__(self, *args, **kwargs)
I'm a total newb, so I apologize for asking a very obvious question, but what is the best way to keep it from popping out? If I copy the code from one of the Frame classes, it tells me that __init__ is not getting enough arguments. I have tried various (obvious) things, but having trouble wrapping my head around this because it ultimately would have to be a passive function operating in the back of the main app, without hindering other functionality (calling new frames). I'm probably just overthinking this and have missed a very simple and elegant solution. Any thoughts?
Here's the full code, thanks for help!
import Tkinter as tk
LARGE_FONT= ("Verdana", 12)
class SeaofBTCapp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
container = tk.Frame(self)
container.pack(side="top", fill="both", expand = True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (StartPage, PageOne, PageTwo):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(StartPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
frame.after(2000, Autoload) #####
class Autoload(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
container = tk.Frame(self)
container.pack(side="top", fill="both", expand = True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (StartPage, PageOne, PageTwo):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(StartPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
frame.after(2000, Autoload) #####
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
label = tk.Label(self, text="Start Page", font=LARGE_FONT)
label.pack(pady=10,padx=10)
button = tk.Button(self, text="Visit Page 1",
command=lambda: controller.show_frame(PageOne))
button.pack()
button2 = tk.Button(self, text="Visit Page 2",
command=lambda: controller.show_frame(PageTwo))
button2.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="Page One!!!", font=LARGE_FONT)
label.pack(pady=10,padx=10)
button1 = tk.Button(self, text="Back to Home",
command=lambda: controller.show_frame(StartPage))
button1.pack()
button2 = tk.Button(self, text="Page Two",
command=lambda: controller.show_frame(PageTwo))
button2.pack()
class PageTwo(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="Page Two!!!", font=LARGE_FONT)
label.pack(pady=10,padx=10)
button1 = tk.Button(self, text="Back to Home",
command=lambda: controller.show_frame(StartPage))
button1.pack()
button2 = tk.Button(self, text="Page One",
command=lambda: controller.show_frame(PageOne))
button2.pack()
app = SeaofBTCapp()
app.mainloop()
So I'm fairly new to the tkiner programming and trying my hands at a GUI with more than one window wich should scan Wifi-Hotspots and show me a list of them. I've copied an example from Switch between two frames in tkinter to get the different windows
I have a Main Menu to enable Monitor Mode for the Wifi-Card and to start the scan. I'm calling another frame with a Listbox to show the results.
My problem now is, that the function startScan(self) is called within StartPage, while the Listbox is in PageOne. How can I adress it there and add entrys to it?
class PyWiFi(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
# the container is where we'll stack a bunch of frames
# on top of each other, then the one we want visible
# will be raised above the others
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (StartPage, PageOne, PageTwo):
frame = F(container, self)
self.frames[F] = frame
# put all of the pages in the same location;
# the one on the top of the stacking order
# will be the one that is visible.
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(StartPage)
def show_frame(self, c):
'''Show a frame for the given class'''
frame = self.frames[c]
frame.tkraise()
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="Main Menu", font=TITLE_FONT)
label.pack(side="top", fill="x", pady=10)
self.var = tk.IntVar()
monCheck = tk.Checkbutton(self, text="Monitor Mode", variable=self.var, command=self.monSwitch)
scanButton = tk.Button(self, text="Start Scan", command=self.startScan)
quitButton = tk.Button(self, text="Quit", command=self.master.quit)
monCheck.pack()
scanButton.pack()
quitButton.pack()
def monSwitch(self):
if(self.var.get()):
print "Monitor Modus an"
check_call(["airmon-ng", "start", "wlan0"])
else:
print "Monitor Modus aus"
check_call(["airmon-ng", "stop", "mon0"])
def startScan(self):
print "Scan gestartet"
app.show_frame(PageOne)
output=check_output('iwlist wlan0 scan | grep -E "Channel:|ESSID:"', shell=True)
netze = output.split()
print netze
for i in range(0,(len(netze)/2)-1):
string = netze[2*i]+" "+netze[2*i+1]
app.frames[PageOne].netzList.insert(END, string)
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="Scanergebnisse", font=TITLE_FONT)
label.pack(side="top", fill="x", pady=10)
menuButton = tk.Button(self, text="Menu", command=lambda: controller.show_frame(StartPage))
quitButton = tk.Button(self, text="Quit", command=self.master.quit)
button = tk.Button(self, text="P2", command=lambda: controller.show_frame(PageTwo))
netzList = tk.Listbox(self, width=30)
netzList.pack()
quitButton.pack(side=LEFT)
menuButton.pack(side=LEFT)
button.pack(side=LEFT)
class PageTwo(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="This is page 2", font=TITLE_FONT)
label.pack(side="top", fill="x", pady=10)
button = tk.Button(self, text="Go to the start page",
command=lambda: controller.show_frame(StartPage))
button.pack()
if __name__ == "__main__":
app = PyWiFi()
app.resizable(0, 0)
app.geometry("320x240")
app.mainloop()
netzlist and all other widgets defined in PageOne are local to __init__. You should name them self.netzlist etc. to be able to reference them as class attributes of PageOne later on.