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.

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

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

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.

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

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

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.

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

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

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

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

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

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!

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

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

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

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

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

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

Was looking for something straightforward on this topic, thanks!

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

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!

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.

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

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

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

Thankyou so much for this tutorial!

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

I love how he smile everytime 😀 👍

Excellent explanation! Thank you!

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 👍

Amazing tutorial, thanks man

Awesome tutorial! Thanks!

Oh man, perfect explainer. Thanks!

Master class by the masterclass! Thanks!

THE BEST cup I saw in my life !

Excellent one. Love it

Love it! Exactly what I needed

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

Incredible, this is very clear

you are an amazing educator! thank you

Dude, super helpful. Thanks!

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

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

Thank you soooooo much.! All best from Germany

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

wow! that was interesting. Thank you

Really appreciate your work and video

this video was amazing! thank you

This is very helpful, huge thanks

`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.

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

finally tutorial i wanted great

Thank u for this awesome video

cool tutorial! thank you very much :)

Excellent explanation. Thx

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

Excellent training video good job !!!!

awesome mug!

Great tuto i really need that ! thank you !

This what i need for my robotic project, thanks

Nice video. Clearly explained

That mug made my day!

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.

Amazing explanations!!!!!

Yesir! Great material

hyped on this one.

thank you very much !!

Love the mug!

999k subs, you’re sooo close!

Thanks for the sockets work describe

GREAT, GREAT THANK YOU!!!!

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

Thanks Bro your video helped me to finish my code

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".

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

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.

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

This guy is the man!!

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.

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Thanks!!!! you´re awesome!!!!

Cool , thanks

very nice video for socket programming in python

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

thanks a lot man

cool mug!!!

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

Amazing...........This guy is AWESOME!

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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.

After doing socket programming in Java this seems very elegant.

thank you , so much usefull

¡Gracias por la lección!