Workaround linker issue when installing scikit-learn on a mac that uses macports

workaround.py

from subprocess import check_call

#remove build directory                                                           
check_call('rm -rf build'.split())

#compile and capture stdout                                                       
with open('build.log', 'w') as log:
    check_call('python setup.py install --user'.split(), stdout=log)

log = open('build.log').read().splitlines()

#find all linker commands that used -L/opt/local/lib                              
bad_cmds = filter(lambda x: '-L/opt/local/lib' in x, log)

#strip out this part, and re-run                                                  
for cmd in bad_cmds:
    cmd2 = cmd.replace('-L/opt/local/lib', '')
    print cmd2
    check_call(cmd2.split())

check_call('python setup.py install --user'.split())