import email
from emaildata.metadata import MetaData
message = email.message_from_file(open('message.eml'))
extractor = MetaData(message)
data = extractor.to_dict()
print data.keys()
message2 = email.message_from_file(open('message2.eml'))
extractor.set_message(message2)
data2 = extractor.to_dict()