Python question

[Binary]

How much space approximately is required to install the following packs on 
Windows XP?

pycairo-1.4.12-2.win32-py2.6.exe
python-2.6.1.msi
pygobject-2.14.2-2.win32-py2.6.exe
pygtk-2.12.1-3.win32-py2.6.exe
pywin32-213.win32-py2.6.exe
gtk-2.12.9-win32-2.exe

Does all this packs requires installation,  or it's possible just extract 
and place them in to C: drive, then to set environment variables properly?
Does this packs installs dynamic libraries and writes to registry?