If you have already installed Gwyddion the installer asks if you want to replace the previous version.
You have three options:
In the following steps the installer reminds you of the software components included in the package and their licenses (that are all Free Software), lets you change the installation directory and offers a choice of languages to use for the user interface.
If you want to uninstall Gwyddion go to Gwyddion. Note that this is valid for Windows XP. The path to the window may be slightly different on other Windows OS.→ → and choose
The installer creates the following useful keys under
C:\Program Files\Gwyddion. Reading this key can be useful for determining where to install extensions.
The list of available languages and corresponding
Locale values include:
Gwyddion has a large number of optional features that depend on third party libraries. The MS Windows packages contain most of them but a few are not included at present:
The Python scripting interface, pygwy, is included in the installer, however, you need to install Python and PyGTK2 separately to use Python scripting. This can be done either prior to Gwyddion installation or any time later. If Python and PyGTK2 is not present pygwy simply does not register itself upon Gwyddion startup.
MS Windows Python installer can be obtained at
Since pygwy requires Python 2 install the latest Python 2.7 version,
which will probably be
Three packages are required for PyGTK2: PyGTK, PyCairo and PyGObject.
Follow the corresponding download links for these modules at
to obtain the installers
or possibly newer versions (if available).
Success has also been reported with the all-in-one installer
that contains everything. However, using the all-in-one installer means
entire Gtk+ will be installed twice (into different locations). Which
bits of which installation will be used in pygwy is difficult to tell.
Hence this method is not recommended.