To use the package you must have installed Python first. I recommend PythonXY, since this package already comes with a lot of useful add on packages. There are two options to install pyermassi. First by installing the precompiled package using setuptools or by compiling the package yourself using Microsoft Visual Studio.
Installing the precompiled package
In most cases you don't want to compile the package yourself but install the precompiled ones. Open a command prompt and type (C:\> is the prompt, "easy_install pyermassi" is the command):
C:\> easy_install pyermassi
or if you want to upgrade to a newer release
C:\> easy_install -U pyermassi
This should then give you some output like this
C:\> easy_install pyermassi
Searching for pyermassi
Reading http://pypi.python.org/simple/pyermassi/
Reading http://www.andre-bell.de/en/projects/pyermassi
Reading http://www.andre-bell.de/en/projects/pyermassi/downloads
Best match: pyermassi 1.0.0.8
Downloading http://www.andre-bell.de/downloads/pyermassi-1.0.0.8-py2.6-win32.egg
Processing pyermassi-1.0.0.8-py2.6-win32.egg
creating c:\python26\lib\site-packages\pyermassi-1.0.0.8-py2.6-win32.egg
Extracting pyermassi-1.0.0.8-py2.6-win32.egg to c:\python26\lib\site-packages
Adding pyermassi 1.0.0.8 to easy-install.pth file
Installed c:\python26\lib\site-packages\pyermassi-1.0.0.8-py2.6-win32.egg
Processing dependencies for pyermassi
Finished processing dependencies for pyermassi
That's it. You can now import the package in Python. Please see the documentation and example for further instructions.
If you don't have the easy_install command available you will have to install setuptools.
Compiling the package
To compile the package yourself go to the download section and download the source code first. Compiling the package requires Visual Studio and SWIG. In case you have installed PythonXY with all packages (full installation) you already have SWIG installed. Unpack the source code and follow the compilation instructions in the README file.