Simple GUI Calculator in Python

Today we build a simple GUI calculator in Python. For the graphical user interface we use tkinter.
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[@thatgarryman9400]

Literally explained better than half of the programmers in KZbin. Makes sense, explains, doesn't do unnecessary stuff.

[@BrendanBurkartSF]

this was super helpful and really well done! I actually really liked that you had the lambda still in there for the btn_equals...it let us see your debugging process. Thank you!

[@marcosvalencia1883]

Yes

[@arslanuzakov988]

i really like that thats the first youtube project thats works without error, thank you sir

[@Lejo1_LV]

now i can not agree it dosent wor to me

[@arnavmeena525]

NeuralNine: *Making Calculator and is doing calculations on it* Also NeuralNine: Am gonna do the calculations myself. Who needs a calculator?

[@lerserk]

19:46 Its the lambda bro!! Thank you for this!

[@wko_]

Very simple and very useful! Thanks for one more project like this!

[@100mikedaniel6]

Stay on the upload grind!

[@NeuralNine]

one video every other day! 💪🏻

[@AlexMuseMatrix]

Try 4 videos Every day, It's a great schedule 😎@@NeuralNine

[@xxpotatoxx1080p]

so good will use my own calculator from now on

[@nipoteemus2472]

Thanks for the tutorial! I have that kind of school project where I have to make a representation of your favorite hobby or that stuff! I planned to make it about coding and I'm trying to do 3 softwares for it and this is fricking good idea!

[@Veestar4u]

Can someone explain why he uses the .delete first before the .insert? What does that do?

[@fzel1]

the amount of time he takes to build the calculator is so impressive

[@andaluzski]

I've always wanted to learn to program and this video helped me understand that my biggest enemy is going to be my dyslexia xD

[@tsmghost]

Already made that but still learnt something new❤️❤️❤️

[@theminecrafttree8913]

nice flex

[@AbubakarMulla23]

Love your coding bro... Stay going on..

[@soufatldude700]

do you need pycharm for this, or can you use the normal python application?

[@reaction_124]

hi gojo kun

[@soufatldude700]

@@reaction_124 Nah i'd win.

[@efogovirtual9635]

I appreciate you, this is absolutely useful, nice tutorial

[@deeparose2926]

Loved it!!

[@AbhayGupta-oz1ix]

This is what i was looking for. Thanks to tutor.

[@shaunakwasker20]

super helpful and clear, thanks a lot

[@cannafarmer]

Thank you for the videos I like to scan them quick when i'm stuck

[@tomasg101]

Thank you dude, I´m learning Python and this was perfect to achieve new knowledge Greetins from Argentina

[@haokaixuan]

love these projects!

[@scratchersdotcom9336]

Very nice tutorial. I very well understood. Really appreciate it 👏

[@finpas9915]

Great Video. Thank you very much!🙏🙏🙏

[@rodinicen689]

Very nice video! More of this! :D

[@MAhmed12_5]

bro thank you very much. you made my day. keep up

[@sithhill]

How does this do the actual math portion without telling it to do a math calculation? The other calculator I made doesn't have a GUI but all the code is to specify the actual math method being used versus, all we (you) did was create buttons. I followed along and just don't understand how it's automatically doing the math.

[@johnbishoppp]

I think it's the eval() function that's doing the math. At 5:30 he mentions that the eval function will evaluate both mathematical equations as well as code.

[@القراءةمفتاحالعلم]

Very simple and very useful! Thanks ❤ 🇲🇦

[@anonymspro7864]

Great bro i was finding this only from a long time.Thanks for uploading in this Content.I'm excited for your next video please upload it as soon as possible :) :) :) :) ;) ;)

[@bonyimakaveli633]

Big thanks man. Really appreciate what you do.

[@EBKCS_DHRUV_SHARMA]

man i love you, best is what i think you are!!!!

[@yadobeatz359]

very simle and helpful a lot, thank you a lot

[@ChudiO]

Really good tutorial, has helped improve my Python knowledge 😊

[@svetlanadelrey973]

i would love if u explained what are you doing in ur actions

[@evoamer2686]

You have made me switch from C# to python my friend

[@DC_Luxurious_Cars_]

I really enjoyed this. Thank you very much.

[@hemanmoriya8237]

I made the project the completely but I didn't learned many things from it because it was copy paste time type program for me .

[@walking-9182]

which code editor did you use? I used codesandbox and don't show the pop up page for blank page for... import tkinter as tk calculation = "" def add_to_calculation(symbol): pass def evaluate_calculation(): pass def clear_field(): pass root = tk.Tk() root.geometry("300x275") root.mainloop() and shows up Traceback (most recent call last): File "calculator.py", line 18, in root = tk.Tk() File "/usr/local/lib/python3.8/tkinter/__init__.py", line 2270, in __init__ self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: no display name and no $DISPLAY environment variable

[@hemanmoriya8237]

@@walking-9182 I used pycharm for python development

[@patibandlalatha7530]

Very much helpful to the python learners

[@affenkratzer]

i have also a function if you want to remove one character from the calculation if you made an error typing, but you need an extra delete button for it: def remove(): global calculation if calculation: calculation = calculation[:-1] text_result.delete(1.0, "end") text_result.insert(1.0, calculation) pass pass

[@Veestar4u]

Thank you so much.

[@walking-9182]

thank buddy 🙏

[@Veestar4u]

Can you please explain why he .delete came before the .insert?

[@affenkratzer]

@@Veestar4u because of the grid placement you need to change it

[@tortu_nashe]

nice vid liked n subed , made me feelike programming more

[@aradthetyper2101]

brilliant! just one thing. i don't get the part where you put (1.0, "end") after text_result.delete or text_result.insert. what do they mean?

[@poorvinalavade8651]

even i want to know the meaning of those parameters

[@timmyt1232]

In tkinter (for text), delete(first index position, last index position). The 1 is first line. The 0 is before first character. The "end" is to the end of the text. insert(index position, string)

[@Himlajchan]

@@timmyt1232 Would you mind explaining where this 'end' argument is defined? Tried to look into the source via PyCharm, but couldn't find where this is specified, not even in any documentation that I looked trough. How can I know what other strings are valid for the index parameter?

[@kennethlourisombrog2149]

Nice. Do you think I can include this in my portfolio to apply for a job? I can say that I followed your tutorial and learned from it.

[@LikinMB]

Great explanation sir, but it would be better if there was "Clear entry" button which only clears the last number that is entered and I how can I implement that ?

[@emitaylorb52]

So wonderful

[@maitruong7909]

Awesome! 10 points

[@fayazshams-rd3ek]

Really really really Great i wish you more success ❤❤❤

[@brendanjordan5485]

Thank you for the video! If I want to make it so that I don't have to type a '*' before the parenthesis for the code to recognize that it should multiply, how do I make it so that this code recognizes that 'x(a)", where x and a are any number , are suppose to multiply? Like if I want it to calculate "90/3(1+2)"

[@jeez8136]

i was wondering that too so i asked chatgpt and this is what it said: To make the code recognize this implicit multiplication, you can add a check in the add_to_calculation function to see if the last symbol in the calculation string is a number, and if so, add the multiplication symbol before adding the parentheses. Here is an updated add_to_calculation function that implements this logic: def add_to_calculation(symbol): global calculation if symbol == "(" and calculation != "" and calculation[-1].isdigit(): calculation += "*" calculation += str(symbol) text_result.delete(1.0, "end") text_result.insert(1.0, calculation) With this code, if the user types a number followed by an opening parenthesis, the function will automatically insert a multiplication symbol before the parenthesis. This means that if the user types "90/3(1+2)", the calculation string will become "90/3*(1+2)" before evaluation.

[@TheRealStrider]

@@jeez8136 So I was wondering this as well and have finally made it work behind the scenes without it showing it add the * before the (. Here is the code: implicit = list(calculation) i = 0 while i

[@oadeep]

thank you so much it works@@TheRealStrider

[@theminecrafttree8913]

the best tutorial ever bro u da best

[@dieelitezwerge7622]

thanks for another very nice video😇😉

[@rekhNZ]

0:42 when he said nonsense haha

[@exxavier1695]

I love the project it was very useful and helpful thanks

[@sarveshsargunan4914]

i learned a lot from this video and i did it myself as well

[@johnbishoppp]

Why not make a class with attributes for the number, row and column, then make a function for creating the button and run it in a for loop. This is how I did it, to save time and not repeat code. I couldn't figure out how to make the loop also name the buttons incrementally (i.e. btn_1, then btn_2) so I had to type that manually. Also had to manually type out the code for equals and clear as the command was different to the others. Would love your thoughts.

[@Tom-ks9xl]

What interface are you using? Looks very good. The standard IDE isn't as nice as this

[@N7ShepardSR]

PyCharm its really good

[@Tom-ks9xl]

Thank you i found it and installed it right onto linux. It's a very nice interface and handy.

[@riascho]

Interesting explanation on the eval() functionality. But what alternatives would you suggest for better security?

[@GeovaniLopesDias]

I didn't watched it with audio on, so I don't know what security issues he mentioned, but I was wondering the whole video when would he write the regex code to interpret the string arithmetic expression. It'd require some extra functions to substitute the eval() built-in. For personal challenge, we could try to code these said extra functions.

[@skystep2]

I am noob, but I would not allowed letters, only go execute eval if there are no letters and other not allowed symbols

[@v11r]

You need to implement a tree

[@paulmwangi270]

The tutorial was topnotch

[@YukiArtsandCrafts]

Interesting explanation ❤

[@Al_X-2005]

Now that I can make custom buttons I can finally create the Calculator 2

[@zhangchill1616]

Very simple Thank yous

[@anirudhpm7155]

How can i add √ and on off button could you please help me.

[@himanshuranjansingh6134]

Thank you man🌻

[@pan_ching]

How do you do the copy paste trick??? damn. It seems like it's a shortcut key or somethin' it was so quick ahahahhah

[@feliperodrigues3277]

You're the best one to explain, ty so much man

[@frigontech]

20:24, do equals without the lambda

[@y7365mVVHsK9J]

Thanks bro 🧑‍💻🧑‍💻

[@RahulKumar-cm1sy]

Thank you sir ❤

[@wise_beanss]

is it possible to make a delete button? If so how do you do it, cos i have been trying to figure it out for the past week, but still can’t (i’m a beginner btw）

[@rezalapriani1001]

i learn from your video, thanks you soo much

[@anakin.gulliver]

can you help me? I get the error: ModuleNotFoundError: No module named 'tkinter' when i tri to do the first test run. I cant seem to get it to work on any ide expect on python terminal alone.

[@LyricZ]

import tkinter

[@akellner2]

Thank you for sharing, I wonder how I can implement an %-Button with the correct function. I tried it but I can`t figure it out.

[@Tom-ks9xl]

Fantastic

[@housemajaliwa]

Good stuff

[@p98976]

this helped me so mauch thax

[@ethan_haymore3907]

everything worked but the buttons only work individually instead of 1+2 it would just say the number by itself when clicked instead of holding memory. any tips or advice

[@brany2920]

i have tried installing this Tkinter but still wouldnt work on my window 10 or my mac pro. its so confusing i get this error : "ModuleNotFoundError: No module named '_tkinter'" what do i do

[@caw986]

hi good video all in all but the code keeps on throwing the error message at me when i perform any calculations

[@davidianmusic4869]

Thanks!

[@BruceChangwe-yt9ce]

plaese help I followed everything but when I press a number it's giving me a word calculation. what could be the error

[@ayuzshh]

so usefull and hepfull I subsribed this is my 2nd videio watching

[@akshar088]

amazing

[@noir66146]

my kind of tutorial

[@kalacarte]

for some reason line 19 isnt working ofr me at 3:43 through 3 :53

[@yoonesaghtaii8991]

thanks bro❤

[@diegos2184]

where did u learn to code?

[@Void-Dev]

For the buttons why not just use a definition?

[@Knowmemelife]

Brow what will I do if on calculator I click 1 and the result is always calculation

[@PCANDPOCO]

thank you very much

[@gooddaywithme7986]

thank you so much 😭😭😭😭🙏🙏🙏🙏

[@iumamaiftikhar]

sir i have a problem on line 5 iwrote it correct what should i do

[@alirezaahmadivand831]

Thanks a lot 🙏

[@Partha-q8h]

Thanks

[@Dalazyfilm]

Tysm❤❤😊

[@sianbunny7724]

thnx man 🙏

[@mariustrelea5132]

Can you implement it with constants e and π , and also trigonometric functions

[@flowman8414]

well do try to do it yourself

[@mariustrelea5132]

@@flowman8414 import math has trigonometric functions and also the inverse functions of themselves ?

[@flowman8414]

@@mariustrelea5132 yea i think so

[@skitmc5842]

17:17 (just a marker so i can skip back into the video without losing where i was before)

[@reskretny20]

he looks like Nacho from Better call Saul

[@HardeepSingh-ec4zq]

How can I add percentage button in this program

[@jokemiri]

I just completed this. Is it possible to clear the screen after a result when a new number is keyed? Thank you for the tutorial.

[@youngistaan5883]

And also there should ve back space

[@srshivam96]

Not working now it says TypeError: 'float' object is not subscriptable whenever i press a button

[@googlegoogle1610]

i like your video but why not to paste the code in the description