[Tutor] Tkinter help?
*Below is a code made by me in 5 minutes, I am new to Tkinter so am kinda noobish. as you can see, lemon equals 0 at the start and when you click the button it adds 1 to the amount lemon equals. After about 15 minutes of trying and 10 minutes googling i can find nothing to help me. when the code loops, lemon is set back to 0 again, how do i stop lemon from being set back to 0. I need it so if you press the button eg 4 times, lemon=4* from tkinter import * root=Tk() root.title(Lemonade Stand) root.geometry(500x500+500+300) lemon=0 def BuyLemon(): str(lemon)+str(1) print(lemon) button = Button(root,text=Buy Lemon x1, command=BuyLemon) button.pack() root.mainloop() -- View this message in context: http://python.6.x6.nabble.com/Tkinter-help-tp5095151.html Sent from the Python - tutor mailing list archive at Nabble.com. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Tkinter help?
On 18/05/15 19:27, cartman6921 wrote:
*Below is a code made by me in 5 minutes, I am new to Tkinter so am kinda
noobish.
We all have to start somewhere.
Unfortunately there are a few issues with your code.
I'll try to deal with them as we go through.
from tkinter import *
root=Tk()
root.title(Lemonade Stand)
root.geometry(500x500+500+300)
lemon=0
def BuyLemon():
str(lemon)+str(1)
print(lemon)
This function doesn't do what you think it does.
The second line takes the string representation of
lemon ('0') and adds the string representation of
1 ('1') using string concatenation to produce '01'
Then it throws it away.
Finally it prints lemon which remains unchanged as zero.
You need to have an assignment inside the function
that modifies lemon. But because you are modifying a
global variable you need to declare lemon as global
inside the function. So you get:
def buyLemon():
global lemon
lemon = str(lemon) + str(1)
print (lemon)
However if you just use that function you will wind
up, after 4 presses, with '0' which is not what
you want.
Instead of converting to strings just add the numbers:
def buyLemon():
global lemon
lemon +=1
print (lemon)
button = Button(root,text=Buy Lemon x1, command=BuyLemon)
button.pack()
root.mainloop()
Once you get that working your next step should be to get
the output printed on the GUI rather than the console. For
that you should probably start with a Label widget. You
can then assign the string representation of lemon to the
text attribute of the label.
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos
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[Tutor] TKinter help
I am just starting to learn Tkinter and I was wondering if I should just run tkinter in pythons new findow and run the program. Iv done this before and my python crashed.. plus I want to create a text widget that has a quit box. will pythons IDLE be able to handle this and display the widget ? or are there other IDE's that I need to use? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] TKinter help
walter weston hacker0...@hotmail.com wrote I am just starting to learn Tkinter and I was wondering if I should just run tkinter in pythons new window and run the program. You don;t run Tkinter, it is just a set of modules like any other. So you run Python as normal, whether from ODLE or from the command line. Older versions of IDLE, being written in Tkinter, got confused so the best advice was wriite the code in IDLE but run it separately. However newer version of IDLE seem better able to cope. Personally, however, I'd still recommend running the code outside IDLE. ...I want to create a text widget that has a quit box. will pythons IDLE be able to handle this and display the widget ? IDLE won't display anything but it will run the program which will display the widgets in a separate window. or are there other IDE's that I need to use? IDLE should be fine if you like it. Just if in doubt try running the code from a command line (or file explorer window). If you are having difficulty it is best to post actual code with actual errors and we can give specific answers. HTH, -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Tkinter Help
Hi, I have a Python app that runs as a Windows Service. Inside this application, there is a Thread that starts a webservice. When this webservice is called, this thread displays a simple Tkinter window with some entry´s for input. But the mainloop simple stays running without presenting any popup or error. The app is running as SYSTEM on Windows. As other user, the code works great. Any advice to make this work ? Thanks in advance. Ruivaldo Neto ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Tkinter Help
On Mon, Jul 21, 2008 at 1:59 PM, Ruivaldo Neto [EMAIL PROTECTED] wrote: Hi, I have a Python app that runs as a Windows Service. Inside this application, there is a Thread that starts a webservice. When this webservice is called, this thread displays a simple Tkinter window with some entry´s for input. But the mainloop simple stays running without presenting any popup or error. The app is running as SYSTEM on Windows. As other user, the code works great. Any advice to make this work ? Thanks in advance. I think this is because you need to have the service marked as Interactive. This page has some information: http://msdn.microsoft.com/en-us/library/ms683502(VS.85).aspx It might be worth asking the question in the py-win32 group or some windows related forum. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Tkinter Help
Ruivaldo Neto [EMAIL PROTECTED] wrote I have a Python app that runs as a Windows Service. Inside this application, there is a Thread that starts a webservice. When this webservice is called, this thread displays a simple Tkinter window with some entry´s for input. Thats usually a very bad idea. Presenting services with GUIs can lead to lockups and other bad things under Windows so you should only do it if absolutely essential. Are you sure there is no other way to run your app? Maybe with the GUI part as a separate program that communicates with the service? But the mainloop simple stays running without presenting any popup or error. The app is running as SYSTEM on Windows. As other user, the code works great. I think the requirements of a service mean there are some extra flags that need to be set. MSDN is probably your best bet for info. It will also explain why services and GUIs don't usually mix. Any advice to make this work ? Don't do it. Find another way. Alan G. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Tkinter help required
Thanks a bunch, Michael. I am using Fedora Core 4 and have installed the tkinter package via yum. Everything is working great as far as I can tell. That really helped. Thanks again On Wed, 14 Dec 2005 15:05:07 +0200 Vlad Popescu [EMAIL PROTECTED] wrote: Hi Vlad, Hello everyone, I have been desperately trying to get Tkinter to run, but without much success thus far. I've followed the instructions at http://wiki.python.org/moin/TkInter ; importing _tkinter does not work and I have no idea what files I should edit in order to add the module. Both Tcl and Tk, along with their -devel packages, are installed and updated. Python version is 2.4.1 it looks like you are running a linux box? If so , probably Tkinter is in a separate package that may be called tkinter or python-tk or something similar, depending on the distro. May be this package is not installed? Regards Michael ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Tkinter help required
Hello everyone, I have been desperately trying to get Tkinter to run, but without much success thus far. I've followed the instructions at http://wiki.python.org/moin/TkInter ; importing _tkinter does not work and I have no idea what files I should edit in order to add the module. Both Tcl and Tk, along with their -devel packages, are installed and updated. Python version is 2.4.1 Any suggestions? Thanks in advance, Vlad ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Tkinter help required
On Wed, 14 Dec 2005 15:05:07 +0200 Vlad Popescu [EMAIL PROTECTED] wrote: Hi Vlad, Hello everyone, I have been desperately trying to get Tkinter to run, but without much success thus far. I've followed the instructions at http://wiki.python.org/moin/TkInter ; importing _tkinter does not work and I have no idea what files I should edit in order to add the module. Both Tcl and Tk, along with their -devel packages, are installed and updated. Python version is 2.4.1 it looks like you are running a linux box? If so , probably Tkinter is in a separate package that may be called tkinter or python-tk or something similar, depending on the distro. May be this package is not installed? Regards Michael ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
