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For questions that relate to the Python programming specifically

5 votes
Accepted

Copy-pasting a part of LGPL-licensed file into Python library

If I copy only a heavily edited part of a file (only partial definitions, without comments etc.) into a Python script, which is distributed along the rest of the library, do I have to distribute that script …
Bart van Ingen Schenau's user avatar
5 votes
Accepted

Does a QGIS python script need to be licensed under GNU GPLv2+?

Your analysis is correct. As soon as you use QGIS features, when you distribute your script you must license your script under the GPL license (version 2 or 3). That gives recipients of the script the …
Bart van Ingen Schenau's user avatar
3 votes
Accepted

GNU GPL license in libraries in python requirements

even if I am not distributing or modifying the GNU GPL package in any way, am I forced to apply the GNU GPL license to my script, because of the dependency? Yes. The GPL license is built around the …
Bart van Ingen Schenau's user avatar
2 votes

PyQt5 Commercial License

If I want to keep everything legal, do I need any kind of license for what I am doing? If I do need license, which one(s) do I need? Yes, to create and distribute a program that uses/is based upon w …
Bart van Ingen Schenau's user avatar
3 votes

How can I use mysqlclient for db connection in django for commercial application?

The GPL license effectively states that if GPL-licensed code is used in a product (either directly or pulled in through a library or package mechanism), then the whole product must comply with the ter …
Bart van Ingen Schenau's user avatar
2 votes
Accepted

How can i use pandasgui commercially if the pyqt library used is not free for commercial use?

PyQt5 is dual-licensed under the GPLv3 and under a proprietary commercial license. With dual-licensed software, you as a user get to choose which license conditions you want to follow. So, you can cho …
Bart van Ingen Schenau's user avatar
6 votes
Accepted

Can proprietary-licensed software execute shell commands that are probably GPL licensed?

Your example python script ticks all the boxes for communicating "at arm's length", so you are free to license that in any way you want. Is above code considered, aggregation? …
Bart van Ingen Schenau's user avatar
2 votes
Accepted

Using Conda's XZ package for proprietary use

[...] xz, uses multiple licenses (public domain, LGPLv2.1+, GPLv2+). I wish to avoid using GPLv2+ as it requires disclosure of the entire source code. Is there a way in using the XZ package without t …
Bart van Ingen Schenau's user avatar
2 votes

What is this Keep the license and copyright notice included in Bootstrap’s CSS and JavaScrip...

What the FAQ entry is referring to are comment blocks like this one /*! * Bootstrap v5.0.2 (https://getbootstrap.com/) * Copyright 2011-2021 The Bootstrap Authors (https://github.com/twbs/bootstrap …
Bart van Ingen Schenau's user avatar
4 votes
Accepted

Understanding GPL & LGPL: Free Software with zero-cost, proprietary libraries

Is my interpretation correct and am I really not allowed to link any closed-source library which does not fulfill the system library exception to a GPL software, if I am conveying a GPL software of …
Bart van Ingen Schenau's user avatar
0 votes

Understanding GPL: Blender Add-on + System Library

To give another angle on the issue: If you need to distribute the DLL together with your Blender plugin, then the DLL can not be regarded as a System Library. The point of a System Library is that it …
Bart van Ingen Schenau's user avatar
4 votes
Accepted

Using LGPL for shared library, and ASL for scripts?

The term "dual licensing" describes the situation where the entire repository is available under two (or more) licenses and the user gets to choose which license terms they want to comply to. What you …
Bart van Ingen Schenau's user avatar
2 votes
Accepted

Can I have the source code of my Python/C++ project under MIT/BSD/Apache2.0 and its PyPI bin...

Can I use a more permissive licence (e.g., BSD/MIT/Apache) for my source code on GitHub, and at the same time use a GPLv2 license for its PyPI binary distribution? Yes, you can. You can even crea …
Bart van Ingen Schenau's user avatar
1 vote

Can I use dual license for a python package which uses library with GPL license?

The GPL license on the library does not strictly imply that you must use the GPL license on the program. The GPL license requires that the rights that users get under the GPL license are extended to a …
Bart van Ingen Schenau's user avatar
3 votes
Accepted

Opensource license for github Python project which uses lgpl libraries

If you didn't include code written by others into your codebase, the library licenses you mention don't put significant constraints on the licenses you can use for your code. The main restrictions co …
Bart van Ingen Schenau's user avatar

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