import sys

import imp

def load_module(module_name):

mod = __import__(module_name)

components = module_name.split('.')

for comp in components[1:]:

mod = getattr(mod, comp)

return mod

def load_module_from_name(filename, module_name):

if module_name in sys.modules:

return sys.modules[module_name]

init_filename = os.path.join(os.path.dirname(filename), '__init__.py')

if not os.path.exists(init_filename):

try:

f = open(init_filename, 'w')

except (OSError, IOError), e:

raise IOError(

'Cannot write __init__.py file into directory %s (%s)\n'

% (os.path.dirname(filename), e))

f.write('#\n')

f.close()

fp = None

if module_name in sys.modules:

return sys.modules[module_name]

if '.' in module_name:

parent_name = '.'.join(module_name.split('.')[:-1])

base_name = module_name.split('.')[-1]

parent = load_module_from_name(os.path.dirname(filename),

parent_name)

else:

base_name = module_name

fp = None

try:

fp, pathname, stuff = imp.find_module(

base_name, [os.path.dirname(filename)])

module = imp.load_module(module_name, fp, pathname, stuff)

finally:

if fp is not None:

fp.close()

return module