PostGIS Raster : Extending PostgreSQL for The Support of ... - CoDE

Appendix B
Python Plugin in QGIS
B.1 Necessary Files
The directory structure of a plugin is as follows:
PYTHON_PLUGINS_PATH/
testplug/
__init__.py
plugin.py
metadata.txt
resources.qrc
resources.py
form.ui
form.py
Where:
__init__.py: contains some basic information about the plugin such as its name, version and
main class.
plugin.py: plugin body that contains main code for all the actions describing the plugin.
metadata.txt: Required for QGIS >= 1.8.0. Contains general information, version, name and
some other metadata used by plugins website and plugin infrastructure. Metadata in metadata.txt is
preferred to the methods in __init__.py. From QGIS 2.0 the metadata from __init__.py will not
be accepted and the metadata.txt file will be required.
resources.qrc: a .xml document containing relative paths to resources of the forms.
resources.py: The translation of the resources.qrc file to Python.
form.ui: a form in QT-Designer with its resources.qrc.
form.py: The translation of the form.ui file to Python.
There are also two automated ways of creating the basic files (or skeleton) of a typical QGIS Python
plugin: the first one using a QGIS Plugin Builder and the second one come from a web application.
B.2 Python Code
B.2.1 __init__.py
def name():
return "My testing plugin"
def description():
return "This plugin has no real use."
def version():
89