Socket Chatroom client - Creating chat application with sockets in Python

[@ali_adeeb]

OH GOD me and my friend were looking a perfect tutorial for this like last week and you released these!!! You'll probably go down as the most loved programmer!!

[@sentdex]

🥰

[@ali_adeeb]

@@sentdex I don't even know what that means but I dont care thanks for replying!!

[@sreetamakundu1478]

@@ali_adeeb hi

[@DeepakKumar-os4bl]

Just for info. If anybody has any difficulty in understanding the code in the video, head over to the text version of the tutorial. It has been explained beautifully. Thanks Harrison :-)

[@calebmwaura8631]

where is the text version buddy??

[@kanknw]

@@calebmwaura8631 it's in the description

[@calebmwaura8631]

@@kanknw please send me a link...kindly..

[@anirbandey303]

I've seen a lot of tutorial videos of many people on many things but your way of explanation is the best! It's clear and simple, I love it.

[@sentdex]

Great to hear!

[@nikodemus7900]

The moment when you are sure that you have seen all of his mugs... It is an illusion

[@karanrandhawa1376]

you literally have a video for everything. I LOVE IT

[@MyPlaylist-xq8en]

I've been waiting for this.....Great Tutorial and Awesome Video!

[@georgemavimbela]

this is awesome..thanks I will use this when getting serious on my Python coding lessons

[@KushChoudhary]

are u serious now?

[@KushChoudhary]

again am here, worried for u. after 1 month

[@KushChoudhary]

Hey Friend, I hope u are serious now edit: After 1 month

[@dazewaker262]

Are you serious now ?

[@mt.erebus3370]

Hey sentdex buddy ol' pal, are you considering continuing this tutorial? found it super fun and learned a ton. would love to see gui implementation!

[@arozoid]

Check out the Kivy tutorial for GUI implementation.

[@wathekghenimi9133]

you're a legend thank you so much this is helps me in my project

[@vomomediaonline]

I haven’t done this but I am very sure if I do, it’s gonna work ! This is so amazing! It has everything I want, I want to say a very big thank you 🙏🙂 keep it up bro

[@dmytroohorodnik3562]

Hell yeah..! Really great tutorial. Exactly what I needed. Wish you good fortune :-)

[@marv-n6m]

In your written code for the client there is a typo in the last exception: except Exception as e: # Any other exception - something happened, exit print('Reading error: '.format(str(e))) sys.exit() you're formating but there are no {} inside the string. Love that tutorial, was a lot of fun to build that. Have a good one!

[@copanomo1]

Could you please explain more about blocking vs non-blocking recv() and how to implement command/response protocols with timeouts?

[@marinaurrey5246]

Thank you! Very interesting experience. You do good tutorials)

[@sentdex]

Happy to share!

[@frbuccoliero]

"Cool!" Part 2 the revenge of the cold

[@copanomo1]

Excellent video series! Thank you!

[@bitcointrader8586]

Best python youtuber hands down

[@Snv_23]

always love your incredible tea cups)))

[@matbaker8294]

Great tutorial. Has sent me in the right direction.

[@bn_ln]

great series - many thanks

[@lbxmega6574]

How can I connect to the server from another computer? I have tried multiple IP’s and received various errors such as “no connect route” and “host error”. Anyway I can connect a remote device to my server?

[@ScottUlmer]

+1 on seeing you do this with Qt5 :)

[@matsinorge]

Thank you for this tutorial!! ❤️

[@Zephyr-tg9hu]

Awesome tutorial, thanks.

[@johncarcher]

Great video, only 1 issue with the code. How could I make it so that it constantly refreshes so I don't have to send a message in order to receive new ones if that makes sense. Basically if I send a message then person 2 sends a message, I would have to send a message to receive the message that they sent me.

[@pi_r_mlm]

20:46 : You can create threads to receive and send at the same time

[@lakshaygarg7311]

can use share tutorial for this

[@ruleofthree1733]

Would be cool if you did a video expanding on this with regards to the server looking for keywords, and then executing a bit of script from a program you've written. Like !roll sent from a user randoms a d6. Or incorperating a little 'mini game' involving another .py file.

[@alpstinger5083]

Thanks man for this awesome tutorial!!!! From where do you learn all this stuff? Because you teach everything so perfectly!

[@anchalmallick3335]

Thankyou! You are my inspiration :)

[@Bvic3]

In case you don't like the weird way to convert with f-strings/strip to manage bytes, here is another version: bytes_header = int.to_bytes(len(bytes_message), HEADER_LENTH, "big") int_header = int.from_bytes(bytes_header, "big") And to convert utf8-string to bytes: bytes_data = bytes(data, "utf-8") utf8_data = bytes_data.decode("utf-8")

[@rydxz6149]

How to make the messages pop up instant?

[@everton.colombo]

For those of you interested, I made a GUI version of this using tkinter that also constantly checks for new messages. Here, have a look: github.com/Everton-Colombo/Socket-Chatroom

[@sentdex]

Please provide attribution for the socket bits

[@bubbachubs8224]

How do I make this actually work across multiple computers, so that I can actually talk to other people and not myself

[@AdiParamartha]

thank you, very helpfull , hopefully i could implement it to iot devices soon

[@AMOs-sy8vl]

Still you are working with us thank you

[@nuklearboysymbiote]

in your text-based tutorial you didn't import sys, might want to fix that

[@icicles0]

help at 17:00 I got an error for server.py for line 27 :"IndentationError: Unindent does not match any outer indentation level"

[@ishaanverma1268]

Ayyy he switched to sublime

[@pra8eek]

Great tutorial! Is the GUI video uploaded yet?

[@judeleon8485]

Great tutorial. Where can find the server and client code scripts written in this tutorial?

[@luvkhajuria207]

for handling client inputs and printing other inputs of other clients at the same time for this, you just have to make input non-blocking. this may help I guess. r_list , _,exe_list = select.select([sys.stdin,client_socket],[],[sys.stdin,client_socket]) for read in r_list: if read == client_socket: msg = client_socket.recv() else: out_msg = sys.stdin.readline().decode('utf8') client_socket.send(out_msg) btw by far best tutorial on sockets and one of the best channel on youtube

[@mihirbhudia4064]

I am very confused atm. I have followed your exact code, even copy and pasted the code from your website, but I do not seem to get the "new client connection" message. Does anyone have any possible reason for this that there could be?

[@ScottUlmer]

Hey I found a way to attach it into a UI. The biggest "issue" is that I had to break your While True and instead had it look for new messages every 1 second. While there might be some lag (literally up to a second), I find this more than useful to people who would be following these tutorials. Just so you know I simply took your code and modified it to work with a .ui file. Using a .ui with Qt Designer is very user-friendly. If you are interested in what I made let me know.

[@wesleywithrow3524]

He has a tutorial on how to create a UI for this using Kivy.

[@Froggles_]

Can you please write the code into the comment section or the description because I’m really struggling to keep up on everything you are doing thank you:)

[@CRsquared64]

the server doesn’t show connections on when a message is sent? please help.

[@liuyang9483]

can we make two threads that one is for sending and the other is for receiving so that you dont have to press enter to check any incoming msg. It just shows up.

[@HT79]

yep, that's one way to do it

[@MstrangerGaming]

i know this is an old video but the logic still works, now the question is , if i want to make this public (connection with different network) then how the connection will work

[@wompytompylompyshompy]

I love your videos and actually highly appreciate it if you would teach us (I'm a total python noob just following the steps of the tutorial) how to put this in a GUI.

[@jake2663]

The tkinter library might be a good place to start for simplicity but QT is better

[@swiftlyexplained703]

It worked! Thank you! :)

[@MustafaAktasVEVO]

Hello sentdex, In this application we r only able to send messages, but what if want to send an `image` to the server?

[@MustafaAktasVEVO]

Guys I am done with this problem. If u wonder how to send an image to server/client in python, let me know.

[@ilyaprieur8254]

@@MustafaAktasVEVO me.

[@Die__Ene]

I havn't tried it myself to see if it works but you could use part 3 in this tutorial to pickle an image and send it. The receiver can then unpickle and write the image data to a .png file and that should get you the image. I guess you could also just send the raw binary data directly and write that to a .png. What solution did you come up with?

[@samdose4672]

Couldn't you just use threading to update the incoming messages without being blocked by the input?

[@xCleverton]

would like to know how this could be done

[@devallazzydevs8544]

Its a great video...can you tell me how to run python file from the local server to client server? or is there any other ways to run python file?

[@Mzkysti]

Great Socket tutorial, thanks. It kept me wondering is it possible to run these in Sublime Text?

[@rhulanimogotsi6869]

How do I keep the socket open in the background to accept any incoming messages, even if the app isn’t open

[@caseycruz7959]

Is there a way that the client can pick who they want to send a message to if there are more than two clients?

[@eddied.3426]

This is great. Could you make a tutorial on how to make a video chat program? Info on the web seems scarce on this point. Also, how do you connect server to clients over the internet?

[@johncarcher]

To get the server to connect clients over the internet, I'd say set the server to the IP of your internet router then get the clients to set their IPs to the routers then the Server will listne to the routers port and the clients will connect to the routers port.

[@sanasm3359]

u actually save me ! that is my project for university but in which video u have worked on UI?

[@hichambenhammouda7368]

really great tutorial, I actually took your idea and used a Tkinter GUI for it. I have one question though , if say like I want the server to make a list of all connected clients and broadcast that list so it can be shown in the client GUI and ofcours it would be continuously update.. how can I do that ?

[@SurferBoi561]

Help line 41, in user = receive_message(client_socket) NameError: name 'receive_message' is not defined

[@samuelgriffin1955]

Thanks, really helpful

[@richyuh]

How is the client code exiting out of the while True: # receive things and not stuck in an infinite loop? Thank you for the tutorial

[@adityapandey1176]

Hello. I wanna ask you something please. I am an intermediate in python programming language and I learned all that from youtube. So I now wanna learn Artificial intelligence. But the point is that I am not able to get proper video lectures and procedures to install tensorflow and all that. I have a laptop with intel atom processor and 2 gb ram with no grapgics card and windows 10. So, now if I can install tensorflow then how to install it and also where I can get free video lectures plzz suppprt me and reply please

[@mateuszkolpa]

pythonprogramming.net/introduction-deep-learning-python-tensorflow-keras/ But I wouldn't start with TensorFlow. Probably better idea to start playing Machine Learning and stuff like that is for example: pythonprogramming.net/image-recognition-python/ Or something little more fun to play with: pythonprogramming.net/loading-images-python-opencv-tutorial/ this one is more picture and video oriented, but its' still fun :)

[@gmqwerty2468]

2gb ram? u sure u wanna do this?

[@Strawberry-oz1qu]

Please continue this series, I tried both Threading and Multiprocessing but the message from the other side doesn't come simultaneously. Please make a video and guide us.

[@shreyashdeshmukh5790]

Does this work on public or just localhost??

[@riaindaly9026]

why do i have to keep hitting enter to see new messages?

[@hx9d674]

So there is or isn't way to make chat automatically updated when new message is recived?

[@felix.taken0]

Im getting an error: Reading error [WinError 10054] An existing connection was forcibly closed by the remote host

[@2wen98]

you are trying to run server twice

[@jaffryjaman4951]

Hello , do you have any plans to make a series on computational fluid dynamics ? The thing is that i am familiar with python , but there are limited tutorials on how to use the python modules used for computational fluid dynamics. It would be very useful if you made a tutorial series on cfd for the aeronautical engineering communities . Thanks

[@menandmice]

Computational fluid dynamics is an extremely theoretical area of science. A sort of rocket science. To make tutorials about that and Python would demand lots of time and expertise. Many, many months.

[@jaffryjaman4951]

@@menandmice thanks for letting me know

[@bcddd214]

I totally used/sponged this.

[@no5x937]

Excellent Series on Python 3 Sockets. I got it to work with the Server in one terminal and one Client in another terminal. When I add a 2nd Client, the Server recognizes it and also receives messages. But the two Clients don't recognize each other and they eventually exit from a General Error invalid literal for int() with base 10: 'Hello Serv' Any ideas?

[@ravindramohith7082]

yeah same error any soln for this prob?

[@yorozuya6115]

Nice tutorial, can I send message from server to clients? without block?

[@ottop1377]

how do i make this work accross multiple computers? i've tried using a hamachi server but it just doesnt connect. even my own ipv4 address doesnt work, it says the ip is not valid in its context. can someone please help?

[@Jonas-odt]

Greate video! Question will this code be able to control the clients pc? like run commands in the command line and such? Thanks!

[@ottop1377]

no.

[@ATXpert]

if i want to make the application public to download, and a private chat(person to person) how do i know which ports are open for use in the clients system, and also i suppose i need to make a server that will connect between two clients, by username. main question is how do i know which ports are ready to use

[@unix.geektarektalaat1631]

Hey, I have a question, how do you interact with each thread ? for instance, if you want to send data from server to a specific client using whatever thread id or anything else. So if server got 3 clients connected, now you want the server to send data to specific client by using thread id or thread ident number or anything. I tried and failed. Can you guide me ?

[@shinydewott]

I know this is an old video, but I've been trying to host a game I've been working online to play with a friend. I have managed to get the sockets to work on my local internet but I can't find any explanation on how to do it online.

[@lolj2094]

great stuff as always man

[@rahulmundlamuri7999]

I am getting an error after sending the first message (General error name 'username_length' is not defined)

[@tanmays9653]

did u get the answer of this error

[@gamhcrew556]

will your program work if the client and server programs are running from different devices?

[@santhoshxd]

bro when are you going to do the GUI? btw Very nice video brooo...helped a lot!!!

[@sentdex]

Already did, with Kivy, here: pythonprogramming.net/introduction-kivy-application-python-tutorial/

[@imagineexistance4538]

For the message receiving without input try _thread or if you don’t have it as a module look at threading(I use pythonista and have _thread but pythonista has different things).and try and make the output and input functions because the module runs two functions and tuples of them(if no input use (,)), The module will continuously run both simotaniously, it is not perfect but works good on my projects, try it out with a copy, it may work or completely break the code

[@vachaarraniry]

what do i do i got this error General error int() argument must be a string, a bytes-like object or a number, not 'builtin_function_or_method'

[@laymanclasher1061]

i followed the whole video , but my server is not responding, what will be the possible error?????

[@DestinyCreatesEntertainment]

on the website you forgot to import sys. also, unused import statement select on client

[@csmh]

Brother , is this work on wide area network ( WAN ) .....

[@JPR137]

yOU doing this from memory omg

[@pritkalariya3976]

Can anyone share the link to the GUI tutorial for this chat application.

[@YashovardhanJha]

which ip have you put in the client and server file when you are connecting with other machines on other networks

[@jonathanmarx752]

HI, I tried running it from 2 different computers and it didn't work. how should I change it so it works between different computers?

[@sanjaytp9410]

Hey, did the vid for creating the GUI part of a chat room get posted on youtube..?

[@KushChoudhary]

i will be making that with source code sooner

[@hairandbeautycenter7216]

There is still that one error... After replacing AND with OR.. Error: Reding error.... A non-blocking socket operation could not be completed... Plzz Help me... Thanks in advance...

[@voidling2496]

i put a wait for a key to get pressed before the message thing so you have to press a key to send a message but it updates automaticly if you dont type noting os dependent

[@happymonkey1703]

Hey um i have a problem, my client is having trouble connecting with the server, well the server is not printing out the part where it said accepted new connection... . This video is great help!

[@ottoyang]

Try turning off your antivirus, That also happened to me

[@zdrasbuytye]

can I run this codes on ubuntu shell ? and what IDE are you using ?

[@furiateds]

when opening cmd to open my server, it says “can’t find ‘__main__’ module” someone help

[@Fuzti13]

Could someone explain to me what the ":

[@stefanlin5086]

wouldnt it be better to easier to use threading instead

[@nishtha7597]

Nyc tutorial..can you please make a tutorial how to connect it with face recognition for more security. I need to do this in my project but can't find any tutorial for that.

[@tylerboucher2108]

it wont let me launch the server or the client from cmd help plzzzzz

[@ZemZem]

Sentdex, is it possible to make a socket with bluetooth on PC (Using AF_BLUETOOTH) ? because I always get an error saying that there is nothing called AF_BLUETOOTH, and when I made a search I found that some people claimed that bluetooth socket with python is not supported in Windows ...