from xml.dom import minidom
from PyZ3950 import zoom

exit_commands = ['exit', 'abort', 'quit', 'bye', 'eat flaming death', 'q']

class Bibsys():
	def __init__(self):
		self.conn = zoom.Connection ('z3950.bibsys.no', 2100)
		self.conn.databaseName = 'BIBSYS'
		self.conn.preferredRecordSyntax = 'XML'

	def isbn_search(self, isbn):
		query = zoom.Query('CCL', 'ISBN='+isbn)
		result = self.conn.search(query)
		return result

	def close(self):
		self.conn.close()

#class Menu():

def get_book_loop():
	bib = Bibsys()
	while True:
		input = raw_input('Enter ISBN number> ')
		if input in exit_commands:
			break
		else:
			r = bib.isbn_search(input)
		if len(r) > 0:
			print r[0]
	bib.close()

get_book_loop()