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 sys.modules.has_key(module_name):
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 sys.modules.has_key(module_name):
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
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