How to import qgis.core to Python app?

I'm new to Python. I want to create GIS app with Python using QGIS library on Window 7 64 bit.

The way I do:

install QGIS 1.7.0

• I set PYTHONPATH=D:\Program Files (x86)\Quantum GIS Wroclaw\apps\qgis\python


• I run python from cmd in D:\Program Files (x86)\Quantum GIS Wroclaw\bin


• I type import qgis.core, a pop up window appear with text

The program can't start because qgis_core.dll is missing from your computer. Try reinstalling the program to fix this problem

and text in cmd is

ImportError: DLL load failed: The specified module could not be found.

Can anyone help me?

Answer

Reinstall QGIS with OSGeo4W installer, it has everything you need to develop already set up. http://trac.osgeo.org/osgeo4w/