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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def connect_database(url):
 """ create database object by url mysql: mysql+type://user:passwd@host:port/database sqlite: # relative path sqlite+type:///path/to/database.db # absolute path sqlite+type:////path/to/database.db # memory database sqlite+type:// mongodb: more: http://docs.mongodb.org/manual/reference/connection-string/ sqlalchemy: sqlalchemy+postgresql+type://user:passwd@host:port/database sqlalchemy+mysql+mysqlconnector+type://user:passwd@host:port/database more: http://docs.sqlalchemy.org/en/rel_0_9/core/engines.html redis: redis+taskdb://host:port/db elasticsearch: elasticsearch+type://host:port/?index=pyspider local: local+projectdb://filepath,filepath type: taskdb projectdb resultdb """

    db = _connect_database(url)
    db.copy = lambda: _connect_database(url)
    return db