I am trying to install python-magic for Windows and I have followed all the instructions in https://github.com/ahupp/python-magic and repeated the process several times but
Go here and download the file "python_magic_bin-0.4.14-py2.py3-none-win32.whl", then
pip install python_magic_bin-0.4.14-py2.py3-none-win32.whl
now python-magic
works
The below original answer is now outdated. Please simply follow the instructions denoted under the "dependencies" section.
ORIGINAL ANSWER:
I was able to solve this problem by moving the 3 files from GNUWin32 project to a separate directory (not the \system32 directory the docs suggest) and adding them to the PATH environment variable
Installing Cygwin with libmagic libary and installing the most recent version of the module from Github solves this problem.
At the time this question was asked, https://github.com/ahupp/python-magic probably didn't support cygmagic-1.dll.
I know this is a Windows question, but i wanted to share a Debian solution:
apt-get install libmagic-dev
Kind regards.