What is Python's Main Function Useful For?

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  • Опубликовано: 12 дек 2024

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  • @expansivegymnast1020
    @expansivegymnast1020 2 года назад +36

    THANK YOU! This is one of those things people expect you to do but never explain why you have to do it. Like, I can understand that I have to have a main function but show me why and what happens when I don't.

  • @Pogo_tC
    @Pogo_tC 3 года назад +15

    I have done a lot of reading and practicing in Python never could understand the dunder thing was and now it finally clicked for me. Thanks, man!

  • @2ru2pacFan
    @2ru2pacFan 3 года назад +62

    That is crazy as I was typing 'what is if __name__ == __main__' on the search bar, a notification popped up and it was this video. What a coincidence 😂 thanks dude

    • @dogwithwatergun1546
      @dogwithwatergun1546 3 года назад

      Thats google cookies for you. Really useful but CAN be used for something else. I know it doesn't but it can.

    • @ninjacodertech
      @ninjacodertech 3 года назад +1

      google is spying on you...

    • @dogwithwatergun1546
      @dogwithwatergun1546 3 года назад

      @@ninjacodertech yes, but you're too boring for them to really look what you're doing.

    • @ninjacodertech
      @ninjacodertech 3 года назад

      @@dogwithwatergun1546 what is wrong with you

    • @dogwithwatergun1546
      @dogwithwatergun1546 3 года назад

      @@ninjacodertech google is spying on you... like yes its 2021, if you want privacy you should start by deleting youtube.

  • @alexander.starbuck
    @alexander.starbuck Год назад +11

    BRILLIANT! After watching at least 10 other tutorials, I FINALLY undersand this concept. Great teaching skills and great style, keep it up ;)

  • @CliffR
    @CliffR 2 года назад +5

    I’ve watched a few videos about this and by far you have the most clear understandable explanation

  • @user-hj2ed5pe6j
    @user-hj2ed5pe6j 3 года назад +6

    How are you calling myvalue as global variables at 6:03. When you use if ___name___ == '__main__' then myvalue is definitely not a global variable. You have to use *global myvalue* before defining it to make it global.
    The error is not at all confusing. Its pretty clear.

    • @disrael2101
      @disrael2101 3 года назад +3

      Ya i thought the same it's in if statement scope

    • @alejrandom6592
      @alejrandom6592 2 года назад

      Only if inside a function, otherwise its implied to be global

  • @holy5413
    @holy5413 3 года назад +1

    my mind just exploded, I see lots of people using it but never had seen someone explaining it, thanks a lot!

  • @andrewjenson_original
    @andrewjenson_original Год назад

    Thanks, I watched 5 other RUclips videos on this topic and your video explained this topic the best.

  • @tylerlee2612
    @tylerlee2612 11 месяцев назад

    i understood this a lot more than what was discussed in the sc50 class! I need to find more simple, basic and vary beginner focused videos talking about how to structure these still though. Thanks for posting this though, it helped with a big part of the confusion on why we use these.

  • @johnztech1651
    @johnztech1651 3 года назад +1

    I like this man how he starts his videos and his explanaition. he looks fynny but serious. i expect more on python GUI

  • @wko_
    @wko_ 3 года назад +2

    Awesome!
    I had needed this in my project and I didn't know how to do it...
    Thanks again!

  • @malakarakesh3139
    @malakarakesh3139 11 месяцев назад

    at 6:09, `myvalue` was still undefined even though it was globally defined. why was it so?

  • @danlekosh
    @danlekosh 3 года назад +2

    YOU'RE TOO GREAT buddy, thanks for dissecting these python notions like that..

  • @mohammedmusthafa959
    @mohammedmusthafa959 3 года назад +1

    Finally understood why we use it!
    Thanks Man!

  • @darkuncle77
    @darkuncle77 3 года назад

    You are the best teacher I have found. You are a genius. Thank you

  • @CloseStudios
    @CloseStudios 2 года назад +1

    The best explaination I could find! Thanks a lot

  • @chaks2432
    @chaks2432 3 года назад +2

    Bruh, are you reading my mind or something? Just got lectured on the Python Subreddit yesterday for not using Main on a script I posted there, lmao

  • @Nircode
    @Nircode 7 месяцев назад

    I'm from Harvard CS50, intro to python programming, this video has helped me a lot. Thanks

  • @rajkumar-zq4ov
    @rajkumar-zq4ov Год назад

    Very nice and detailed explanation...thank you so much

  • @seanredmond9212
    @seanredmond9212 2 года назад

    yeah I agree with other comment - saw other videos on this topic and I think your explanation was best. thanks.

  • @bookweerd
    @bookweerd Год назад

    Thank you this was the best explanation for this topic!

  • @marcomoscoso7402
    @marcomoscoso7402 Год назад

    Best explanation of this in Yt

  • @DubZenStep
    @DubZenStep Год назад

    protect this man at all costs

  • @bazzkiller1331
    @bazzkiller1331 Год назад

    Shouldn't the if __name__ == "__main__" expression be only inside the "main" script? Not in "mylibrary"...

  • @Billcasiopost
    @Billcasiopost Год назад

    Exactly the answer I was after, thanks 👍👍

  • @thatguythatdoesstuff7448
    @thatguythatdoesstuff7448 7 месяцев назад

    Something confusing to new learners is when you use .py names that are duplicative of non dynamic syntax.
    Calling the .py "main" when the if statement is not referring to the .py named main causes confusion.
    A new user will see that and attempt to change '__main__' to reference the .py they are trying to call the functions from.
    Otherwise, very good video.

  • @vasilebordei4668
    @vasilebordei4668 2 года назад

    This video helped me a lot!! Thank you!

  • @MrCipek1221
    @MrCipek1221 2 года назад

    Thanks :) I just counted on that I could find a video with you explaining this :D

  • @patriciodiaz2377
    @patriciodiaz2377 Год назад

    Thanks so useful! And so easy to understand

  • @vatsalgandhi93
    @vatsalgandhi93 2 года назад

    great help man!! appreciate it !!

  • @berkant8074
    @berkant8074 3 года назад

    There is just one word to describe you guy : AWESOME.

  • @jromeroevo
    @jromeroevo 2 года назад +1

    Great tutorial. I do have a question. Don’t you need the keyword “global” to turn a variable into a global variable ?

    • @Anonymous-om5ql
      @Anonymous-om5ql 2 года назад +2

      Yeah...even I was thinking of that

    • @한진영-o5q
      @한진영-o5q 2 года назад

      no, it's just what we call the variable.

    • @sethadkins546
      @sethadkins546 2 года назад +2

      Only if inside a function, otherwise its implied to be global

  • @emilioserrano7062
    @emilioserrano7062 Год назад

    beautiful, thanks a lot!!!

  • @hicham_6544-_-
    @hicham_6544-_- 3 года назад

    What theme are you using in pycharm ,bro 🤔

  • @tushermyth
    @tushermyth 2 года назад

    Thanks for this! :)

  • @0verflowSec
    @0verflowSec 3 года назад +2

    Can you make video about Jython(Java + Python)

  • @benlong1062
    @benlong1062 3 года назад

    This was really interesting. Thanks!

  • @knowhowww
    @knowhowww Год назад

    Dude! WTH dude! thank ****! much love bro thanks

  • @SiTheMon777
    @SiTheMon777 Год назад

    Great explanation 🔥

  • @cylemmulo
    @cylemmulo 2 года назад

    Thank you so much!

  • @alonelay
    @alonelay 3 года назад

    so variable can't define as globally, but can define in local. And no error?

  • @ivanoliveirapsd1337
    @ivanoliveirapsd1337 2 года назад

    Great, help me to understand. Hugs from Brasil

  • @VeereshPatel15
    @VeereshPatel15 3 года назад +2

    Love ❤ for ur efforts and ur content
    In future I am expecting
    videos on Frontend roles and Responsibilities like
    1. What actually do frontend developers do in realtime ( different tasks)
    2.. How manage 4+ experience in realtime
    3. . How to crack any frontend interviews with 4+ years of experience
    4.....Easy way to to crack any angular/reactjs interviews with 4+ experience/10lack package ------) ))
    5....Top 20 program's to cover entire angular/reactjs syllabus.----))
    6....Top 10 angular/reactjs concepts with examples

  • @naro108
    @naro108 2 года назад

    Great explanation

  • @historyrogue5056
    @historyrogue5056 3 года назад +3

    please do a Cython tutorial , and a question , is Cython more practical to use than CPython?

    • @IzUrBoiKK
      @IzUrBoiKK 3 года назад

      Yes

    • @historyrogue5056
      @historyrogue5056 3 года назад

      @@IzUrBoiKK Do you use it? can it actually make python code run in C code speed?

  • @oguzhantopaloglu9442
    @oguzhantopaloglu9442 3 года назад +1

    can you do some tutorials of pillow?

  • @Franx570
    @Franx570 3 года назад

    Do the Nvim tutorial of the COC implementation or the new LSP of the Neovim 0.5 :(

  • @Rnjeazy
    @Rnjeazy 11 месяцев назад

    Thank you s so much!

  • @xolaninqubezelo3091
    @xolaninqubezelo3091 Год назад

    Great video.

  • @menna-s2p
    @menna-s2p 2 года назад

    You are awesome!😃

  • @ChristopherBruns-o7o
    @ChristopherBruns-o7o 4 месяца назад

    why do if __name__ == '__main__': not throw valueerror forexpecting else:

  • @LucPOLO
    @LucPOLO Год назад

    Bro, there are two possibilities, either you’re fucking genius teacher or others are terrible craps doing it. Whatever the answer is, as many others here i finally understood this concept after a few hours of unsuccessful researches.

  • @cannotthinkofoneatth
    @cannotthinkofoneatth 11 дней назад

    Read a few online tutorial, nothing made sense.. this short video did in 5 mins

    • @NeuralNine
      @NeuralNine  8 дней назад

      That's what I try to accomplish :)

  • @rashmikaabeyrathna1017
    @rashmikaabeyrathna1017 2 года назад

    grate job

  • @ninjacodertech
    @ninjacodertech 3 года назад

    ohhhhh this makes sense

  • @redserpent
    @redserpent 2 года назад

    excellent video. Tweeted.

  • @JarppaGuru
    @JarppaGuru 2 года назад

    for all main part lol

  • @ItsDebooh007
    @ItsDebooh007 3 года назад

    Is sumeet your Friend

  • @churchofclaus
    @churchofclaus 2 года назад

    🤯bro

  • @philtoa334
    @philtoa334 Год назад

    Thx_.

  • @aditya_asundi
    @aditya_asundi 3 года назад

    first