Why is python not written in C++ ?
in [Python]
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From: Martin v. Loewis on 10 Aug 2010 20:06 Am 10.08.2010 09:06, schrieb Ulrich Eckhardt: > Carl Banks wrote: >> I highly doubt the Python source would build with a C++ compiler. > > As Christian showed, it doesn't. However, look around the sources a bit. > There are lots of places where e.g. the returnvalue of malloc() (or, > rather, the macro that resolves to something like it) is explicitly > type-cast to the according pointer type. When asked on the developers' > list, it was said that this was intended for compatibility with C++, e.g. > in cases where people want to embed Python into their C++ projects. Of > course, this contradicts Christian's statement that C++ compatibility > wasn't considered useful enough. It doesn't contradict at all. In order to embed Python into a C++ application, it is sufficient if the Python header files can be compiled with a C++ compiler, and linking to the C function works properly - which is indeed the case. People integrate Python with C++ quite often, both for embedding it into C++, and for writing extension modules in C++. Regards, Martin
From: Ulrich Eckhardt on 11 Aug 2010 02:40 Martin v. Loewis wrote: > Am 10.08.2010 09:06, schrieb Ulrich Eckhardt: >> When asked on the developers' list, it was said that this was >> intended for compatibility with C++, e.g. in cases where people >> want to embed Python into their C++ projects. Of course, this >> contradicts Christian's statement that C++ compatibility >> wasn't considered useful enough. > > It doesn't contradict at all. In order to embed Python into a C++ > application, it is sufficient if the Python header files can be compiled > with a C++ compiler, and linking to the C function works > properly - which is indeed the case. That's true, maybe I don't remember the exact rationale. Especially if even someone like you, who is much deeper into Python development, doesn't, I'm wondering if I'm misremembering something.... Cheers! Uli -- Sator Laser GmbH Geschäftsführer: Thorsten Föcking, Amtsgericht Hamburg HR B62 932
From: sturlamolden on 11 Aug 2010 09:44 On 11 Aug, 08:40, Ulrich Eckhardt <eckha...(a)satorlaser.com> wrote: > That's true, maybe I don't remember the exact rationale. Especially if even > someone like you, who is much deeper into Python development, doesn't, I'm > wondering if I'm misremembering something.... Header (definition) and source (implementation) is not the same. A C++ compiler can use Python's header files and link with Python's C API correctly. But it cannot compile Python's C source code. A C compiler is required to compile and build Python.
From: Ulrich Eckhardt on 12 Aug 2010 03:01
sturlamolden wrote: > On 11 Aug, 08:40, Ulrich Eckhardt <eckha...(a)satorlaser.com> wrote: > Header (definition) and source (implementation) is not the same. I'm aware of this and that's not the thing I was talking about. Uli -- Sator Laser GmbH Geschäftsführer: Thorsten Föcking, Amtsgericht Hamburg HR B62 932 |