fix pyZeroconf bug where getServiceInfo returns None.
This allows the discovery window to work with targets using Avahi to advertise their services.
(patch obtained from <http://sourceforge.net/tracker/?func=detail&aid=1600775&group_id=100909&atid=628622>)
from os import listdir, path
_base_path = path.split(__file__)[0]
__all__ = [name for name in listdir(_base_path) if path.isdir(path.join(_base_path, name)) and name.upper() != "CVS" or name.endswith(".py") and not name.startswith("__")]
helps = []
for name in __all__:
helpfilename = path.join(_base_path, name, "README")
if path.isfile(helpfilename):
helps.append(open(helpfilename).readline().strip())
else:
helps.append(name)