First of all you need to know, that I've made a research on Internet and I've read dozens of topics. Moreover I asked another programmers about this issue. I still don't know what to do.
The problem has occurred when I decided to publish my software written in Python. I would like to publish it on GitHub. I know that one of the most popular license on this website is the MIT license. My program uses the
SciPy library. I checked its license and it looks like the BSD (3-clause). Moreover I know that the MIT and BSD licenses are compatible which means more or less that one of them doesn't limit the second.
How the program uses the
SciPy? My script only imports different modules from the library and calls functions that I need. That's all. Moreover, I don't want to distribute source code nor binary file of the
SciPy library. Ok, but the license tells us:
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: (...)
Thus, as I understand it means that I have to add this license to my project because:
(...) use in source (...) without modification (...) = import module or call functions
Even the FAQ on Python Wiki recommends to rely on licenses. Unfortunately this implies some doubts:
- License multiplication
- Thousands of one-license software
- Where are previous license?
Ad.1 If we follow the above quotation, it means that license compatibility doesn't make sense, because we always have to add a license of the next generation, even if both are the same level.
Ad.2 I saw many projects on GitHub which were only licensed under the MIT license. In particularly there were Python programs and some of them used
numpy and similar libraries. I didn't see additional licenses. Some of projects are very popular. It means that their authors should add licenses to own software?
Ad.3 According to this topic:
NumPy is mostly written in C.
I checked one of the most basic library of C
stdio.h which contains:
Redistribution and use in source and binary forms are permitted provided that the above copyright notice and this paragraph are duplicated in all such forms and that any documentation, advertising materials, and other materials related to such distribution (...)
But I can't find this text in the
SciPy documentation. Ok, maybe
SciPy developers didn't use
stdio.h but I expect that not only this file contains a such license.
Maybe I'm wrong, I hope so. I hesitated to start this thread, because perhaps I don't have a basic knowledge, but this topic confirms that my doubts can be reasonable.