That feeling when you spend hours weeding through needlessly complicated tutorials until you find the one that just makes sense and is 1000 times simpler than any of the others.

Since I found your videos, I've been hooked on Python and eventually branched out and lost sight of your videos. After watching this video, today, I'm reminded why your videos are by far better than most other tutorials.

AF_INET means Address Family InterNET for IPV4. IPV6 is AF_INET6, Bluetooth is AF_BLUETOOTH, unix sockets are AF_UNIX, etc.

This is by far the most easily understandable python socket tutorial I've come across! It's like a ray of hope while I'm doing my final year project.

Dude, i see a lot of tutorials dealing with socket programming, by far it is the best! Clear, Sharp, Smart!

Full marks to you for using a nice big font to make the code clearly easy to read on KZfaq. You would not believe how many coding examples make you have to squint to figure out what they were typing ...or maybe you would. Thanks again, nice presentation.

I really like your teaching style, explaining every line briefly, makes things a lot clearer. Thank you!

The way you explain it really shows you understand the topic. Love to see that in a tutorial because it means it's a good tutorial.

A class and practice of 2 hrs. Explained within 15min with making so much sense. I like it.

`socket`: This is the module in Python that provides access to the BSD socket interface. It is used to create networking applications. `AF`: Stands for "Address Family". It specifies the format of the address. In this case, `AF_INET` indicates the IPv4 address family. `INET`: Stands for "Internet". This indicates that the addresses are IPv4 addresses, which are used for internet protocol version 4.

This was so absolutely helpful!! Thank you so much and keep up with the good work!! I really love your tutorials

right on time my man, just when i started looking for sockets tutorials right on goddamn time, love it !

while i was looking for socket tutorials, there it is! lovely! added to favorite for later use. really useful in trading.

I have been playing with python programming for a few weeks as part of self learning. Socket programming felt bit troublesome and I always had issues when running. Came upon your video above and tried the way you showed above and i made connection. hurray!!. I am in socket programming. great feeling. thanks man

I recently wrote similar socket code in C, and its interesting how closely Python and C map here. AF stands for address family. It denotes the kind of addresses a socket can communicate with. In this case, the socket uses IPv4 addressing. Similar families are AF_INET6 for IPv6, AF_UNIX for IPC on Unix systems, AF_BLUETOOTH for Bluetooth and so on.

I've been looking for good tutorials no this subject and couldn't find any, untill you came!! Great tutorial, great teaching skills. Instantlly subscribed!!!

GREAT VIDEO MAN!! FOLLOWING YOUR SERIES FROM PYTHON BASICS TO ML TO DATA SCIENCE AND NOW THIS!!!KEEP DOING THE GOOD WORK!!! ! BLESS YOU!!

Very entertaining video. I am still very new to python and I've been writing some basic scripts for work. This video is exactly what I was looking for. Thank you!

Sentdex, you r every where in python learning clips Thx, for your valuable time &effort to educate us You r my hero brow😍

One of the best tutorials on Yotube. Thank you so much for such a great and enthusiastic explanation! It all finally works

Simple and elegant, master orator and Python maestro... (and that cup is so unique)

Thanks man! Waiting for the next video. Learn alot from your tutorials, commenting for the 1st time on any youtube video.

“And then an exclamation mark because this is serious business” I laughed my pants off hearing that😂

Hi dex! Love your tutorials! Is there any chance you would make an updated threading tutorial? The sockets library goes very well together with threading functionality.

Hi sentdex. Good tutorial, it get's to the point quickly without painfully explaining the history and the why and on and on. Just enough background and just get to it! I like it. Just one note. I know this works for a tutorial purpose, but when you concatenate a string with += in a loop, it's dangerous. If this were a very large amount of text, the stack memory could exhaust. This is because strings are immutable and so each loop, it creates another copy of the string plus the added part each loop. In a fast loop with many iterations, the python garbage collection will not have enough time to release the memory for the previous copies and run out of stack memory. It is good Python practice to not use that method in a loop. Rather, append to a list of strings in the loop, then join them together at the end. Just a word of caution for those who may want to scale something like this up.

Thanks for this! Are you planning on making a full "network programming with python" series? I've been interested in learning more about this but never really found a good jumping off point, and as a back-end web developer, I want to learn more about the hardware/software interfaces I'm working with. Your videos are really good and I love the work you're doing!

I was actually waiting for this tut. I couldn't find anything that I could understand. Thanks alot! I'll watch it right away!

That’s exactly what I was looking for! Thanks, sir!

Thanks! Moving to the next video... Appreciate the in-depth explanations. Some stuff I know.. some I am clueless.. those clues are critical! :)

bro thank you for the tutorials. helping me out a lot putting this all into regular people speak lol

Man your videos are so helpful, and Python is just too fun! ❤️

Was looking for something straightforward on this topic, thanks!

Great video Sentdex .. thank you for the effort !!

Really helped.me understand. I was doing some trying wirh tcp connections and sending data... you opened my eyes for what i was doing wrong.. definetly a sub 👍

your the best youtuber i understud immediatly other than by other youtubers you r explaining very well

Thank you for helping me with my first python project. Creating a socket :)

Thank you for this tutorial, i tried to use sockets in python a while back and got quite confused at first.

thanks a lot,man!It is super helpful. You are really a life savior to me!

I love how he smile everytime 😀 👍

Are you an god??? you can prgramming really gooood , dont stop with this :)

Short and very impact video, really good for beginner like me.

Thankyou so much for this tutorial!

Quick note, I think often you first send the size kf the message as a fixed amount of bytes, so you can have a variable message length later. Just using a fixed buffer either requires you to pad the message or you will receive multiple messages in one recv call when the calls are coming in fast enough

THE BEST cup I saw in my life !

thank you sooooooo much!! you are the best Python teacher :)

Thank you soooooo much.! All best from Germany

Amazing tutorial, thanks man

Thank you so much, you just helped with my project to do with an encrypted messaging app - seriously needed to learn this and there's no man I'd rather learn it from.

Love it! Exactly what I needed

I am new subscriber, but i found your lessons very useful. Thank you.

12:38 My code is exactly the same, yet the message that I receive is only "erver!" instead of "Welcome to the server!". It seems as if it's not buffering correctly. How can I fix that?

Hi there! Thanks to you I was able to make a server-client(s) connection on my own. But I struggle finding a way to make the communication between the two along 2 or more distant computers. Can you PLEASE show us how to do this without buying hosting or domain? Honestly, I would be your top fan if you do this

Oh man, perfect explainer. Thanks!

I don't understand how your code ever gets to if len(msg)

wow! that was interesting. Thank you

After doing socket programming in Java this seems very elegant.

Hi, accept() function creates a brand new socket that is used to send and receive data. That way the socket object "s" that you created at the beginning is used to receive the request from multiple clients. If you use socket object "s" to send and receive data that you cannot handle multiple clients at the same time. That's why the new socket obtained by calling accept() is used to send and receive data.

finally tutorial i wanted great

you are an amazing educator! thank you

Hey Bro, you are my inspiration.....:-)

Excellent explanation! Thank you!

4:00 I may be mistaken but i'm pretty sure it makes sense to use clientsocket.send() (and not s.send() or s.send(clientsocket)) because s is the welcoming socket only. By that I mean clients request to connect via that socket, but they don't actually connect to it, we make a new one (clientsocket) specifically for them, and that's what they connect to. So clientsocket and s are both sockets on the server side that are both bound to the same port, it's just s is used for setting up connections whilst clientsockets are used for making the actual connections.

Master class by the masterclass! Thanks!

I'm a new student trying to learn, so I can become a programmer with python and I have a project on how to make a port scan. So far I already make a port scan with Python3, and it scans fine, give a date and everything working good so far. I see on your video tutorial you give example on how to send and receiving data. I would like to ask for your advice if you can and guide me on how I will add this 3 in a Python script, I have: 2. System should look for all the ports between the range of 1 to 1025 3. If the Ports is open, it should create a file and add an entry for port number 4. In case of any exception for instance “host is not available”, “host name could not be resolved” or due to any other error, you need to write that exception into the same file. Thank you and Merry Christmas.

cool tutorial! thank you very much :)

If I'm not mistaken, then 1024 is the packet size. I think this will vary depending on what your network can handle (i.e. jumbo frames). You can test if you can send/receive a specific size packet by using *ping -l [size] [address]* - The *l* is a lowercase L

999k subs, you’re sooo close!

Very nice Video, it is a good tutorial!!! PS: I am sorry about mistakes in this text, I am from Germany.

i love your coffee cup!

Dude, super helpful. Thanks!

Awesome tutorial! Thanks!

When you get a programming ad on a yt channel that teaches you how to program for free

very nice video for socket programming in python

The best Channel From Morocco BigUp

Great tuto i really need that ! thank you !

Really appreciate your work and video

I think you should have pointed out the distinction that the first socket you create in the server (s) is not actually the socket that will be used for communication. It is the listening socket, which only gets connection requests. The clientsocket that is created is the actually communication socket and is actually on a different port. I think the early awareness in intro tutorials will help avoid confusion. Great tuts, btw!

the AF_INET constant is used to specify the address family for IPv4 sockets. AF stands for "Address Family", and INET stands for "Internet Protocol version 4".

Hi Harrison, Can I request you to make tutorial on networking and how Python widely used in networking? And...Thank you so much,you have no idea, how easily I had learnt Python by your tutorials.🙌😊

Incredible, this is very clear

this video was amazing! thank you

This is very helpful, huge thanks

Loved the video!!! Please do one for UDP connection!!

Excellent one. Love it

Excellent training video good job !!!!

This what i need for my robotic project, thanks

Thanks Bro your video helped me to finish my code

Awesome video thanks! Question: does the socket named s in the server code refer to the same s in the client code? In other words is the "s" in both server.py and the "s" in client.py refer to the same socket (the socket on the server) Or do both S's refer to the socket on the client. Thanks. Maybe they are the same S since they are on the same machine??

Thank u for this awesome video

That is one funny cup you have.

Excellent. Please do demo of other Inter-Process communication techniques. XML-RPC, Event Driven systems, Message Queues, Callbacks, etc - in similar simple video and preferably Python.

Wow. 7:38 - you can do cmd on the address bar of the location ! Neat !

thank you sentdex for such an amazing video. I am a 15 years old boy who is really passionate about python. I am working on web development using Django and machine learning using tensorflow and scikit learn. I am largely dependent on your awesome videos to learn. can you please suggest something to me? By the way a heartfelt thank you...

A sentdex video? First liking, then watching

Nice video. Clearly explained

Sir I couldn't be more thankful for all your tutorials... I would also want to request a tutorial on seq2seq modeling on sequence data mapping onta sequence, in keras please...

Awesome video! Kinda looks like snowden!

Everyone gansta 'til sentdex starts drinking out of a cheeseburger

Thanks for the sockets work describe

I'm glad he gets right into the code but I really need to know what this whole socket/server/client stuff is, what it's used for, etc... Does anyone have a video that explains all that?