Installation difficulties

The SAC (Seismic Analysis Code) file format was designed to be of use to researchers for faster analysis and processing and for the generation of quality graphs. A Python based open source project for processing seismological data in sac format is Obspy. Obspy has effective data manipulation and visualization tools; it seemed a good idea to use it for the project.

We started with trying to install Obspy on Windows 7/8 which took a while. To test if it was working correctly we tried the first example given in the Obspy tutorial. The very first command, the one that imports the obspy.core module gave the error- ImportError: No module named core. 

A google search of the error led to us a possible solution:  Copying the obspy.core-0.6.2-py2.7.egg file from C:\Python27\Lib\site-packages\Obspy\Lib\site-packages to C:\Python27\Lib\site-packages. It seemed that the error would resolve now, and it did. 

But resolving the error did not seem worthwhile when the second command raised an error- DistributionNotFound: obspy.core; this time an error that we could not resolve. 

The installation was tried with Python 2.7.4 on a Windows 8 machine and with Python 2.7.5 on a Windows 7 machine; both resulted in the same error.