I have the same problem as here.
Dropbox Python SDK installation error on Windows 7 (could not create 'build')
The user didn't say how they fixed the issue (I have tried starting again, and reinstalling Python). I asked the user to elaborate and my post was deleted because I wasn't answering the question. Sorry, I'm new here. But re-posting seems counter intuitive to me.
Here goes...
I installed Python 2.7, then downloaded and tried to run setup.py of the Dropbox Python SDK.
It asked me to add the setuptools, so I did, and then tried to install the Dropbox setup.py from a CMD. After which I got the below...
C:\Python27\dropbox-python-sdk-1.5.1>setup.py install
running install
running bdist_egg
running egg_info
writing dropbox_python_sdk.egg-info\PKG-INFO
writing top-level names to dropbox_python_sdk.egg-info\top_level.txt
writing dependency_links to dropbox_python_sdk.egg-info\dependency_links.txt
reading manifest file 'dropbox_python_sdk.egg-info\SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'dropbox_python_sdk.egg-info\SOURCES.txt'
installing library code to build\bdist.win-amd64\egg
running install_lib
running build_py
creating build
error: could not create 'build': Cannot create a file when that file already exists
C:\Python27\dropbox-python-sdk-1.5.1>
What have I done wrong? I know it hasn't installed because the Dropbox module isn't there.
I'm using Windows Server 2008 64bit if that helps.