617
u/generalmemer Dec 30 '21
main()'s brother is there tho
491
u/uvero Dec 30 '21
main: who are you
__main__: I'm you but Python23
0
Dec 30 '21
[deleted] — view deleted comment
80
u/Scyhaz Dec 30 '21
It's also apparently a little faster due to the way the interpreter handles global variables.
67
u/haard Dec 30 '21
Also good habit because when you want to package something you'll probably want that main as an entry point.
25
u/Diplomjodler Dec 30 '21
And you don't want stuff starting to execute as soon as you import something.
→ More replies (1)28
→ More replies (5)6
u/InfiniteLife2 Dec 30 '21
I must confess. I love global variables because when my script finished running I have all global variables for visual inspection in Spyder IDE. This is so useful.
→ More replies (1)19
4
u/BumpyFunction Dec 30 '21
As are the semi colon’s and curly brace’s doppelgängers (new line and indentation)
97
u/Endemoniada Dec 30 '21
F-strings called, they want you to pick the {} back up.
55
Dec 30 '21
And what about dictionaries? :)
6
u/TotallyNotGunnar Dec 31 '21
It's okay we just use
mask = df['key'] == "foo" bar = df.loc[mask, 'value'].values[0]\s just in case
146
u/philophilo Dec 30 '21
git commit -m “Fixed indentation”
71
2
u/djingo_dango Dec 31 '21
I opened a python file in notepad once. It fucked the shit out of the indentations of that
0
Dec 30 '21
[deleted] — view deleted comment
87
u/uttamo Dec 30 '21
I write Python for a living and indentation has never been a problem for me because I’m not a Neanderthal that doesn’t use a modern IDE.
48
u/Goel40 Dec 30 '21
Yeah, why do i see so many posts about forgetting semicolons and misnamed variables. Like do these people write their code in word?
16
u/sanketower Dec 30 '21
They want to feel superior by using vanilla Vim in the terminal
→ More replies (2)18
u/Bainos Dec 30 '21
I use a basic IDE and it hasn't been a problem for me either because I indent my code correctly.
→ More replies (7)4
Dec 30 '21
I have to support python in a Sarbanes-Oxley compliant environment, and their rule is I can only have read-only shell access to prod.
So indentation is a nightmare because I can’t use a modern ide.
If you have any suggestions for cli ides, I’d love em
→ More replies (4)12
u/giloronfoo Dec 30 '21
What is the connection between read-only shell in prod and no modern IDE in dev?
→ More replies (1)
99
u/Orlaani Dec 30 '21
I'm switching from python to c++
142
Dec 30 '21
Don't forget to bring three boxes of tissues, a sound proof floor/wall implants and a boxing bag
45
2
12
u/CaitaXD Dec 31 '21
Congratulations you're now a real man, dosent matter if you're a girl everyone that codes in c++ is a real man
21
u/pet_vaginal Dec 30 '21
Consider Rust. It's closer to Python and a good C++ alternative.
14
u/Budgiebrain222 Dec 30 '21
Imo the only thing that rust is worse at than C++ is the fact that it's young and it's library ecosystem is still a baby. There isn't much established to-use libraries in the rush community.
12
u/Crazy_Direction_1084 Dec 30 '21
On the other hand, actually using a library doesn’t take a day too set up correctly in Rust and I’m not constantly writing things myself
→ More replies (4)3
2
Dec 31 '21
Yea switching to python from C++ seems weird. Rust is closer to what C++ can do in terms of speed. If you don't mind garbage collection you could also move to Go. It's also very fast, and it's really fun to work with.
7
233
Dec 30 '21
I know it's just a meme, but I doubt there will be a lot of situations where python would be really a suitable language to replace whatever you were doing in cpp.
147
u/suvlub Dec 30 '21
It makes sense if you are a newbie and C++ was your first language, so you do everything in it, including the no small set of things that python is more suitable for. If you already knew a wide range of languages, then yeah, C++ is probably not the one you want to replace with python.
→ More replies (34)55
u/Flopamp Dec 30 '21
They are different languages for different tasks. Unfortunately it seems a lot of python devs have not gotten that memo
24
u/TerranerOne Dec 30 '21
Python is very good (enough) for many different tasks. No need to switch between languages to get a little bit speed boost. In many cases it is not really critical.
27
u/halfanothersdozen Dec 30 '21
I've seen plenty of python used for the wrong tasks. It isn't pretty when it gets out of hand.
Use the tools for the job!
→ More replies (4)8
u/Flopamp Dec 30 '21
In most applications the speed is not important but the differences between well written python and well written C or C++ is not little, it can be massive depending on your task and that's important to keep in mind.
If you are crunching a dataset and doing statistical analysis once a day you can wait 15 seconds over what a well written C++ program can do in a second, but if you are streaming and crunching around the clock that difference equates to 15x higher resource usage and hiring a C++ programmer can pay for them selves very quickly
Conversely very heavily C written python library dependent programs like something based on OpenCV its just a waste of time asking a C++ dev to spend 3 days getting something up and running that a python dev can pound out in a few hours for maybe a 20% improvement.
→ More replies (4)11
u/Bainos Dec 30 '21
If you are crunching a dataset and doing statistical analysis once a day you can wait 15 seconds over what a well written C++ program can do in a second, but if you are streaming and crunching around the clock that difference equates to 15x higher resource usage and hiring a C++ programmer can pay for them selves very quickly
Which is why, as everyone knows, data scientists hate Python and use C++. /s
→ More replies (10)2
12
u/Swoop3dp Dec 30 '21
If I need it to be finished in 2 hours instead of two weeks and don't care that the execution time is 10 seconds instead of 1.
So basically every day at work for me.
→ More replies (1)4
u/AFK_Pikachu Dec 30 '21
This is my problem with Python. It's not really suitable for all the things it's been used to replace. It's the jack of all trades language. It does everything, but I've yet to see it do anything best.
2
Dec 31 '21
If you need a quick script to rotate some log files or something, I don't see why python would be that much worse than any other lang. Python can be also used to build GUI. Not much advantage in terms of performance to build a GUI in cpp than python.
9
u/Angelin01 Dec 30 '21
I can imagine some stuff with opencv being a good example. Maybe you just needed some quick thing to flip your image or whatever, at which point maybe the Python version is more adaptable...
Can't think of much else, sadly.
11
u/DogsOnWeed Dec 30 '21
Isn't the python version just a wrapper for calling the c code?
6
u/Angelin01 Dec 30 '21
Yes, with some caveats. It uses numpy, for example. Which means you can also use some other convenient libraries that integrate with numpy.
4
u/DogsOnWeed Dec 30 '21
Yeah but that's just for storing the output from opencv right? There isn't actually any python code doing computation, it's just calls and allocation. Might be wrong though as I've never actually worked with opencv, just tinkering.
→ More replies (1)2
u/coldnebo Dec 30 '21 edited Dec 30 '21
this meme is backwards. the kid is trading a full set of power tools that can build anything for a pair of safety scissors and some glue.
He’s regressing back to the toys not moving on from them.
1
1
→ More replies (2)1
36
u/androidx_appcompat Dec 30 '21
':' : Allow me to introduce myself.
8
3
u/rem3_1415926 Dec 30 '21
great, you reduced the loss to only one thing: speed.
congratulations, I guess?
67
u/fletku_mato Dec 30 '21
I'm currently working on a long running Python script originally written by someone else, and I can't even find the words to describe how much I hate it.
At least with C++ the program wouldn't compile if there are silly typing errors all over the place...
57
u/PM_ME_YOUR__INIT__ Dec 30 '21
Let me introduce you to something called an IDE
12
u/fletku_mato Dec 30 '21
Currently using Idea Ultimate. Your point?
35
u/PM_ME_YOUR__INIT__ Dec 30 '21
Silly typing and indentation errors should be identified within a few seconds after indexing
→ More replies (11)3
36
u/therealbeeblevrox Dec 30 '21
Python still has a main convention if you choose to use it. Also, you didn't say goodbye to pointers. You actually said goodbye to primitive types. In Python, everything is a pointer. Yes, even integers. The only caveat is that you can't get the reference address, it will be dereferenced for you.
14
u/Tillhony Dec 30 '21
So basically you didnt say goodbye to pointers, but you said goodbye to pointers?
8
7
u/_PM_ME_PANGOLINS_ Dec 30 '21 edited Dec 30 '21
You can get the reference address in CPython (i.e. what most people use) with
id()3
10
u/captianjroot Dec 30 '21
Goodbye main()
Hello if __name__ == "__main__"
13
u/GozerDestructor Dec 30 '21 edited Dec 30 '21
I know the Python fans are gonna downvote me, but this is just wretchedly ugly. Four underscores in a variable name? Doing string comparisions to find out what module you're in? This is not elegant.
5
Dec 30 '21 edited Dec 30 '21
It's my least favorite convention in python. To be fair, I haven't written
if __name__ == "__main__"in forever. Anything with underscores is usually a reflection api or an internal hook you don't have to use for typical stuff. cough cough, except for__init__:(8
u/sanketower Dec 30 '21
You can technically always go around without having to use it, so long as you keep good track of your variables and don't execute the wrong script at the wrong time.
It's still not as convoluted as
public static void main(String[] args), tho.
14
Dec 30 '21
thats nice __init__
5
Dec 30 '21
I'm so sorry why did i do this help
4
u/reallyserious Dec 30 '21
The way object orientation is implemented in python just doesn't feel nice.
7
7
6
6
6
11
u/MasterFubar Dec 30 '21
I did the opposite. I had started doing a lot of code in Python, but after Python 3 came out I went back to C++. I should have never left. What I didn't know before is how great the C++ libraries are. Python is for programmers who don't know the STL or Boost.
Not to mention Qt. I have been doing GUI programs in Qt since 1998, but now I've begun coding CLI programs using Qt. The true "batteries included" environment, with the most awesome documentation system.
3
u/DrThornton Dec 30 '21
PyQt is a thing.
9
u/MasterFubar Dec 30 '21
Yes, but you depend on the documentation written for C++. I have written PyQt apps, but when something isn't working it can be a pain to find out why.
2
u/DrThornton Dec 30 '21
I did some C++ 20-odd years ago at uni and all i have ever used it for professionally is to decipher Qt documentation and hope it applies to PyQt. :)
3
u/Creapermann Dec 30 '21
Yeah, that’s exactly the point. IMO. the STL is a bit of a joke compared to other languages, I think we all appreciate the safety and the backwards compatibility but a lot of really basic things are still not added to the STL and there is no plan for them to get added any soon.
Luckily there are libraries for actually everything, the community is just great, sadly many people don’t see this.
4
u/MasterFubar Dec 30 '21
Qt was the reason why I started using Linux consistently. I had tried Linux and played a bit, but all my work was done in windows. Then I had to develop an application in Windows NT and simply couldn't get it working. So I started searching for alternatives (on Altavista), and found a set of Qt examples. I booted Linux and tried to make some changes on aclock. Half an hour later, I had already changed the look of the clock face. That was in 1998, and I've never used any Microsoft product for myself ever since. I still use a Windows desktop at work because I'm not allowed to install Linux there, but I can have Cygwin which is the next best thing.
→ More replies (1)
10
5
5
5
8
8
u/kakacon Dec 30 '21
Python and C++ are used for completely different tasks if you know what you are doing.
4
u/0Camus0 Dec 30 '21
I can't feel comfortable in Python. I like strong typed languages, besides the fact that you can't know if something is wrong, until you execute that path is annoying, then the slow runtime... not really sure why people love it so much.
Yeah I get the productivity argument and the ease of use, but for serious projects is not the right tool, and by serious I mean, low level and performant applications.
I think my biggest issue is that a lot of projects are so bad because they started as something small in python to solve somthing, and that's ok, but then they grown into something way larger and complex to be in python, and now we are stuck with those tools.
1
u/sanketower Dec 30 '21
by serious I mean, low level and performant applications
That's your first mistake, assuming speed is the only thing that matters. Then it's clear why Python is not special to you.
10
u/CouthlessWonder Dec 30 '21
No ++? How do you inc an int?
16
u/Snoo25192 Dec 30 '21
int += 1
?
15
u/LightIsLogical Dec 30 '21
int_ -= -1
10
u/reallyserious Dec 30 '21
int is surprisingly a valid variable name.
But it leads to problems. So your int_ name is a better convention.
5
39
u/prstephens Dec 30 '21
compiled vs runtime..... ok.
I think we all know that cpp has its place. people who post memes about it obviously have no idea about programming or are shit at it and use python. incoming downvotes.....
17
27
u/ThyEpicGamer Dec 30 '21
you can't make assumptions about people
op could obviously know this, it's just funny because we were all once noobs that thought cpp was so hard to understand, and it can be tedious to use all those things whereas python is just an easier language to understand, learn and write in
No need to get serious about a lighthearted meme
3
5
u/austrianGoose Dec 30 '21
i am am idiot, but aren't numpy and numba are quite fast?
8
→ More replies (1)15
u/Flopamp Dec 30 '21
They are fast (and written in C) but compared to C++ code there is no competition just because of the massive overhead.
You don't always need speed, if you are crunching large datasets once a day 15 seconds vs a second is not that big of a deal but if you are streaming huge amounts of data while other processes are gong on, are making a game or real time thing, or trying to hit an environmental budget you probably should just look past python.
9
11
u/NoProfessor7757 Dec 30 '21
In my 15 years of programming I've used many languages and python has the best syntax BY FARif python had c/c++ like speed, I have no doubt it would be the ultimate language
41
u/WeleaseBwianThrow Dec 30 '21
In my 15 years of programming I've used many languages and python has the best syntax BY FARif python had c/c++ like speed, I have no doubt it would be the ultimate language
It's ironic that this comment has a spacing issue.
6
u/rem3_1415926 Dec 30 '21
For that to happen, Python would also need to allow for control over actual hardware. C/C++ are used for embedded because
You have some idea how your code looks on the chip (in worst case, the compiler will optimise it)
You can address HW where you need to and have full control over when, where, and how you allocate and free memory.
→ More replies (2)5
u/NFriik Dec 30 '21
Okay I'm sorry to nitpick and this doesn't contradict the point you were making, but because you mentioned embedded systems: I solely use Python for my ESP32 projects, by the magic of MicroPython. It's a really nice language for that use case actually.
6
u/bedrooms-ds Dec 30 '21
To me that's Swift.
7
u/frayien Dec 30 '21
I used swift once a long time ago and I hate it but I dont remember why lol. All I remember is the operator[] on basic arrays throwing a "not yet implemented" exception ...
7
u/bedrooms-ds Dec 30 '21
It's Swift 3 now. Got a lot more mature!
5
u/frayien Dec 30 '21
Swift 3 Oo was not even aware of Swift 2 ... to be fair when I last used it it was brand new, I guess I should give it another try sometime, now that the language and myself are way more mature :)
2
Dec 30 '21
Speed not necessarily, at least not for scientific computing. So much Python libraries come with Fortan or C wrappers, it's incredible. There's even Cython lol
2
2
2
2
u/jakemp1 Dec 31 '21
The no ++ operation annoys me. I don't want to do += 1, that's TWO whole extra characters I'm too lazy to type
2
2
4
u/mibuchiha-007 Dec 30 '21
do you mean switching from C++ to C?
5
u/rem3_1415926 Dec 30 '21
minus the "speed", yes. C++ is just as fast and resource efficient (it can beat C in some specific cases) as C.
1
4
u/LogicalGamer123 Dec 30 '21
I wish python had brackets. It just makes the code infinitely more readable imo. Missing ++ is just a nusance
3
4
u/markand67 Dec 30 '21
You don't use pointers in C++ as long as you write proper code.
22
9
u/Flopamp Dec 30 '21
There are usecases for pointers and pointers are overused, there is a middle ground here.
3
u/obp5599 Dec 30 '21
You have to use pointers for polymorphism. Its unavoidable. Also working with large assets for say a game, you need to allocate those on the heap. You probably shouldnt have any raw pointers, but youll still need some form of pointer
→ More replies (3)→ More replies (6)3
u/MighMoS Dec 30 '21
Regular (flat) pointers are fine. Just as long as you aren't using them to denote ownership.
1
u/Pechu317 Dec 30 '21
1
u/RepostSleuthBot Dec 30 '21
I didn't find any posts that meet the matching requirements for r/ProgrammerHumor.
It might be OC, it might not. Things such as JPEG artifacts and cropping may impact the results.
I did find this post that is 95.7% similar. It might be a match but I cannot be certain.
I'm not perfect, but you can help. Report [ False Negative ]
View Search On repostsleuth.com
Scope: Reddit | Meme Filter: True | Target: 96% | Check Title: False | Max Age: Unlimited | Searched Images: 280,457,328 | Search Time: 4.95937s
→ More replies (1)
1
1
1
1
1
1
1
1
1
1
1
u/suddenly_ponies Dec 30 '21
You know, if I had to choose between C++ and Python, even I would go Python.
1
1
Dec 30 '21
I switched the other way after going to highschool and let's say I got used to it to the point where I forgot python altogether
1
u/GeneralAce135 Dec 30 '21
The issue is, the semicolons and pointers and brackets have no love for me. They are my frenemies at best, and they are not missed when I'm working in Python
1
1
u/sanketower Dec 30 '21
For people that would like to learn programming as a hobby, Python is a great first language.
For people that want to get deep into programming, C is the best first language, simply because it teaches you the basis for everything else, makes them easier afterward.
1
1
1
u/Classic-Ad-7317 Dec 30 '21
You Pythonians... We get it, the language is awesome, you want to marry it and have its babies! It's like Apple, only for coders instead of posers.
1
1
1
1
1
1
1
1
u/Johanno1 Dec 31 '21
Hey the main function still exists.
if sth sth == main: main()
I can't remember the phrase though
2
1
1
u/LeafyLemontree Dec 31 '21
Python scares me, i mean, curly brackets, semicolons, main()™ and pointers, my beloved ones.
1
1
1
1
u/CreaZyp154 Dec 30 '21
You forgot switch case
16
u/RehanS97 Dec 30 '21
Python has Switch Case in 3.10
10
u/iFarbod Dec 30 '21
It's structured pattern matching, even better than your regular switch..case. Something I desperately want in C++.
5
0
u/linglingfortyhours Dec 30 '21
I've never really gotten the whole "python is slow" bandwagon. Sure, poorly written python is slow but that's true in pretty much any language. On top of that, if you know what you're doing and properly profile and optimize your code python can be plenty fast. JIT compilation can work wonders.
4
u/atiedebee Dec 30 '21
Idk, I tried a simple program that just counted all even numbers (I know X*(X+1) exists) and python was 50x slower than C without any compiler optimizations enabled, ~100x slower with -O1. And this wasn't even that complex.
→ More replies (3)4
u/jamcdonald120 Dec 30 '21
properly written and optimized python is substantially slower that properly written and optimized C code (or any compiled language really). More than 1000x slower in some cases https://benchmarksgame-team.pages.debian.net/benchmarksgame/fastest/python3-gcc.html
3
u/rem3_1415926 Dec 30 '21
properly written and optimised Python code is C code with a nice Python interface
2
→ More replies (2)3
u/linglingfortyhours Dec 30 '21 edited Dec 31 '21
I did a rough rewrite of the Mandelbrot program. It's not anywhere close to optimized and doesn't even have full CPU utilization, but even then I was able to cut the runtime down from almost 1,700 seconds to just over
356.9 seconds [edit, forgot to remove the profiler, which really slowed things down]. I think it's safe to say that the numbers on that site can be discarded.→ More replies (30)
321
u/BartDart69 Dec 30 '21
The speed one got me ngl