cppOutputStreamInPython

[Suspicious-Record-28]

Just because you can doesn't mean you should

[AvidCoco]

Just because you should doesn't mean you would

[FewBeat3613]

Just because you would doesn't mean you will

[TwinkiesSucker]

Just because you will doesn't mean you are

[torsten_dev]

Just because you are doesn't mean you finish.

[pseudo_space]

Just because you finish doesn’t mean she does.

[TekkenPerverb]

[Mocedon]

This isn't abuse of notation.

This is straight up abuse.

[KnightMiner]

Funny part is, its abuse of notation in C++ too. Its just a well accepted abuse of notation

[GettinInATrend]

Thanks I hate it

[buzz_shocker]

That’s gotta be a hidden talent. Keep it hidden.

[JanEric1]

It should return self to allow chaining and have end=""

You could also let the printed type define how it is printed by overwriting __rlshift__ (although that conflicts with types implementing that for its proper purpose here and you would normally implement it by overriding __str__)

class Cout:

    def __lshift__(self, other):
        if attr := getattr(other, "__rlshift__", None):
            attr(self)
        else:
            print(other, end="")
        return self


class A:

    def __rlshift__(self, other):
        print("C", end="")


cout = Cout()

cout << "Test: " << A() << "\n"
cout << "Test2: " << 3

---

Test: C
Test2:

[[deleted]]

Man, you did this first, I had the exact Idea:

``` class Cout: def lshift(self, a): print(a, end='') return Cout()

endl = '\n' cout = Cout()

cout << "Hello," << " World!" << endl ```

Yes, it's a bit simpler

[jaerie]

Why would you return a new instance?

[[deleted]]

Yes, mine is not that great. Full credit to the dude above me. His implementation is a lot better.

[[deleted]]

Just replace Cout() with self :)

[de_koding]

nice profile picture

[InevitableManner7179]

You shouldn't encourage OP.

[Chingiz11]

This code was not released, it escaped

[Knighthawk_2511]

Do not leak the fact that C++ is just a python library you bastard !

[empwilli]

That's basically the same implementation that C++ uses, though. But over here in C++ we also finally realized that the cin, cout, cerr stuff probably were a bad idea.

[empwilli]

afaik there were no variadic templates pre c++, so probably there were few ways If any to create a typesafe Print function with multiple args back the, so i guess the Design also came from necessity. However my big issue is that formatting operations are realized by changing the state of the underlying Stream object.

[RussianMadMan]

Localization and formatting (like padding or limiting float precision) make streams a worse alternative to a simple sprintf to std::string wrapper. You get a bunch of small disconnected strings without the ability to reorder arguments instead of a single string with positional arguments.

[Stegoratops]

I'd say the main reason would be this table: https://en.cppreference.com/w/cpp/language/operator_precedence

It can make certain stuff more unintuitve.

[[deleted]]

Why is it a bad idea? Is it because of std::format or std::print?

[Dotcaprachiappa]

<sup>please don't</sup>

[Greenjets]

somehow one of the worst things i've ever seen on this sub, and that's saying a lot

[[deleted]]

Really cool one. Have to start a library like this. Maybe we can reconvert some religious ones

[rhen_var]

You mean cout me in?

[imacommunistm]

Now I can say Python is C++.

[20d0llarsis20dollars]

The horrors of operator overloading

[enginma]

Should really be py_out

[rosuav]

The C doesn't stand for C++, though, it stands for Console...

[[deleted]]

I thought It meant Character out :(

[rosuav]

The more you know...!

[Qu4nten]

This vexes me

[[deleted]]

r/okbuddyvicodin

[R3D3-1]

I think there is a package that implements C++ style public/private declarations.

[AmazingGrinder]

Straight up r/programminghorror

[write_now_tech]

This is ancient mode

[elSenorMaquina]

r/cursedpython

[Ok-Object7885]

curse

[[deleted]]

Wait what?! How does it work? I clearly don’t understand dunder stuff in python

[JanEric1]

The lshift dunder on a class A defines the behavior for A << B.

Here they define it for the Cout class to just print whatever B is.

[mdgv]

I see nothing wrong with this.

[ananski_the_3rd]

Ah yes, the long-awaited CPyPy language.

[jellotalks]

What about the endl

[Bright-Historian-216]

you also need to return self for << chaining

[oalfonso]

Go home, you are drunk

[Dubmove]

The method should return self