'''Read the requirements from the filename, supports includes'''

requirements = []

if os.path.isfile(filename):

with open(filename) as fh:

for line in fh:

line = line.strip()

if line.startswith('-r'):

requirements += parse_requirements(

os.path.join(os.path.dirname(filename),

line.split(' ', 1)[-1]))

elif line and not line.startswith('#'):

requirements.append(line)