|Version 10 (modified by mitar, 2 years ago) (diff)|
Add-on is a Python package. The structure of an add-ons repository is as follows, package name being a name of a directory of the add-on's Python package, often lowercased addonname:
orange-addonname/ COPYING LICENSE setup.py docs/ Makefile rst/ conf.py index.rst _packagename/ datasets/ widgets/ __init__.py ... __init__.py ... src/
docs contains reST documentation of the add-on. src possible contains C/C++ source code. datasets any additional datasets add-on might use.
Package name starts with _ to signify it is for internal use only. Add-ons register through setuptools hook into Orange namespace. Use relative imports to access other modules inside the package, if possible.
setup.py, Makefile, and conf.py as prepared in Biolab's add-ons can be used to get a good starting point for a new add-on.
Add-ons should be distributed through PyPi. If done so (and keyword orange add-on is used for the package), they will be displayed among available add-ons on Orange webpage.
Care should be taken that add-ons work also as Python eggs.
Installation using pip is recommended and should be supported by an add-on. Other way of installing is simply by putting add-on's Python egg into user's add-ons dir (add-ons subdirectory of Orange homedir).