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Good video. The reason it's a None type is that you are returning the value of the pack/grid method (None) and not the class widget to the variable for assignment. In fact, if you do not plan to act on the widget after creating it with a one-liner, there is really no need to assign it to a variable.
I faced this problem a few days ago and had to sort it out by myself. In my opinion, whenever you store the output of an Entry or Label widget in a variable and if you want to use the value of that variable somewhere else, then you should not pack/grid it on the same line. If you have no intention to use the value stored in the variable later, then you can safely pack/grid it on the same line. In such cases, you do not even need to assign it to any variable. For example, we can write, Label(root, text="Anything).pack() in stead of, my_label = Label(root, text="Anything).pack() if we do not want to use the output of this command to any further use. At the end, I want to thank Mr John Elder for helping me in growing my Python programming skills. Your simple explanations are unmatched.
wow I desperately needed this information. I am following this tkinter tutorial and i am in video number 18 and learned alot of things.addition i always talk with you up to 0:43 sec while starting your video lol.
The reason why it returns NoneType is because you are trying to store the return value of the .pack() method into a variable. Since the method does not return anything the program will crash once you try to reference the object you are trying to modify because you aren’t really storing that object. I hope that makes sense
a question, is any good to have multiple button.configure(somenthing=somthing)? will it clog the cpu or ram, if used too many times? if it will be bad, how can we find a good way to not let the code be spagethy and hard to read? exemple: Login = tk.Button(Login) LoginB.place(relx=0.340, rely=0.725, relheight=0.050, relwidth=0.125) LoginB.configure(activebackground="#ececec") LoginB.configure(activeforeground="#000000") LoginB.configure(disabledforeground="#a3a3a3") LoginB.configure(foreground="#000000") LoginB.configure(highlightbackground="#d9d9d9") LoginB.configure(highlightcolor="black") LoginB.configure(justify='left') LoginB.configure(text='''Login''') LoginB.configure(command=LoginA)
i recently discovered your channel through freecodecamp and im wondering if you have addressed the issue of playing video files in tkinter gui's in any of your earlier videos? great content by the way.
Sir,can you please tell us how to open another gui python file using a button. I just dont know what fucyion to call or i just dont have any idea. Help me.
Something like this would probably work... import os def run_program(): os.system(my_file) my_button = Button(root, text="open file", command=run_program).pack()
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Good video. The reason it's a None type is that you are returning the value of the pack/grid method (None) and not the class widget to the variable for assignment. In fact, if you do not plan to act on the widget after creating it with a one-liner, there is really no need to assign it to a variable.
Yep
I faced this problem a few days ago and had to sort it out by myself. In my opinion, whenever you store the output of an Entry or Label widget in a variable and if you want to use the value of that variable somewhere else, then you should not pack/grid it on the same line.
If you have no intention to use the value stored in the variable later, then you can safely pack/grid it on the same line. In such cases, you do not even need to assign it to any variable.
For example, we can write,
Label(root, text="Anything).pack()
in stead of,
my_label = Label(root, text="Anything).pack()
if we do not want to use the output of this command to any further use.
At the end, I want to thank Mr John Elder for helping me in growing my Python programming skills. Your simple explanations are unmatched.
Thanks :-)
wow I desperately needed this information. I am following this tkinter tutorial and i am in video number 18 and learned alot of things.addition i always talk with you up to 0:43 sec while starting your video lol.
Glad you enjoyed it
The reason why it returns NoneType is because you are trying to store the return value of the .pack() method into a variable. Since the method does not return anything the program will crash once you try to reference the object you are trying to modify because you aren’t really storing that object. I hope that makes sense
Yep
Thanks. I ran into this a lot this weekend making a form for work.
Yeah it trips up a lot of people!
Another great video from you, sir!
Thanks!
Hit that like button Python Fans! Great tutorial. Feed the Algorithm!
Ha!
Really useful information. Thanks!
Sure thing!
Sir,I don't know why our TH-cam channel is not getting more subscribers though having a vey god content.
#risecodemy
Tell your friends :-p
a question, is any good to have multiple button.configure(somenthing=somthing)? will it clog the cpu or ram, if used too many times? if it will be bad, how can we find a good way to not let the code be spagethy and hard to read?
exemple:
Login = tk.Button(Login)
LoginB.place(relx=0.340, rely=0.725, relheight=0.050, relwidth=0.125)
LoginB.configure(activebackground="#ececec")
LoginB.configure(activeforeground="#000000")
LoginB.configure(disabledforeground="#a3a3a3")
LoginB.configure(foreground="#000000")
LoginB.configure(highlightbackground="#d9d9d9")
LoginB.configure(highlightcolor="black")
LoginB.configure(justify='left')
LoginB.configure(text='''Login''')
LoginB.configure(command=LoginA)
It's fine. It won't clog your computer
@@Codemycom thanks for let me know :D, you are a genius, i advanced a lot watching you guides.
@@AlissonManiinho Happy to help
Sir are you making any tutorial for image recognition? Thanks
Not in the immediate future
i recently discovered your channel through freecodecamp and im wondering if you have addressed the issue of playing video files in tkinter gui's in any of your earlier videos? great content by the way.
Thanks! No I haven't talked about that in any videos yet...
It's been a long time since you made some applications with tkinter
We made the flashcard app a couple weeks ago
"Important safety tip." -- Dr. Venkman Pack your sh*t on the next line. :-) Thanks John!
ha!
Sir,can you please tell us how to open another gui python file using a button. I just dont know what fucyion to call or i just dont have any idea. Help me.
Something like this would probably work...
import os
def run_program():
os.system(my_file)
my_button = Button(root, text="open file", command=run_program).pack()
@@Codemycom ill check it sir. Thank you for responding. Have a nice day!.
No sir,it didnt work and i found that adding pyhon before the name of the file worked. Like "python trial.py".
this one is a masterpiece....this NoneType object has no attribute---- thing is nightmare to me.....thnx for the video
Glad you liked it
Hello , I want join to codemy.com but I can't see all your courses . Can you show all list of courses what you have ?
Thank you
On the main Codemy.com homepage it lists all the courses. You can click on them each to read more.
1:30 😂😂😂
Pls sir we want
more
Yeah I post several new tkinter videos per week
Sir, You have become very skinny 😄
Have I?