try:
_temp = imp.load_source("viewers.%s" % file, os.path.join(os.getcwdu(), "viewers/%s.py" % file))
self.modules.append(_temp)
try:
_temp = imp.load_source("viewers.%s" % file, os.path.join(os.getcwdu(), "viewers/%s.py" % file))
self.modules.append(_temp)