[Tutor] Instances

[Kent Johnson]

Greg Kellogg wrote:
> Lets say i do:
> 
> 
>>>>i = f.get_movie('0092411')
> 
> 
> No I know the i holds an instance:
> 
> 
>>>>i
> 
> <imdb.Movie.Movie instance at 0x2d7a08>
> 
> How can I find out the value of all the data this instance has?  I can
> do a dir(i)
... 
> I know there is more info in there than this, is there a way to see
> everything that 'i" without hunting and pecking?

You appear to be using imdbpy. The file docs/README.package gives some tips on how to use Movie objects. A Movie behaves like a dictionary; the data is stored as key/value pairs. To see all the data in a movie you could use
for key in movie.keys():
  print key, '=', movie[key]

(Normally I would use 
  for key, value in movie.items():
but there is a bug in movie.items() and this doesn't work.

Also Movie has a summary() method that returns a string describing the movie, so you could use
print movie.summary()

Here is an example based on info from README.packages:

 >>> from imdb import IMDb
 >>> i = IMDb()
 >>> movie_list = i.search_movie('beautiful girls')
 >>> first_match = movie_list[0]
 >>> print first_match.summary()
Movie
=====
Title: Beautiful Girls (1996)

 >>> i.update(first_match)
 >>> print first_match.summary()
Movie
=====
Title: Beautiful Girls (1996)
Genres: Drama, Comedy, Romance.
Director: Ted Demme.
Writer: Scott Rosenberg.
Cast: Matt Dillon (Tommy 'Birdman' Rowland), Noah Emmerich (Michael 'Mo' Morris), Annabeth Gish (Tracy Stover), Lauren Holly (Darian Smalls), Timothy
Hutton (Willie Conway).
Runtime: 112.
Country: USA.
Language: English.
Rating: 7.2
Votes: 7754
Plot: Beautiful Girls is about a group of small-town friends joining up for their first high school reunion. They find themselves evaluating their liv
es and their relationships. It's about growing up and facing reality.
 >>> i.update(first_match, 'all')
 >>> print first_match.summary()
 >>> for key, value in first_match.items():
 ...   print key, '=', value
 ...
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "imdb\Movie.py", line 226, in items
    return [(k, self.__movie_data[k]) for k in self.keys()]
KeyError: 'canonical title'
 >>> for k in first_match.keys():
 ...   print k, '=', first_match[k]
 ...
rating = 7.2
composer = [<imdb.Person.Person instance at 0x00A52288>, <imdb.Person.Person instance at 0x00A522D8>, <imdb.Person.Person instance at 0x00A52300>, <im
db.Person.Person instance at 0x00A52328>, <imdb.Person.Person instance at 0x00A52350>, <imdb.Person.Person instance at 0x00A52378>]
producer = [<imdb.Person.Person instance at 0x00A49A58>, <imdb.Person.Person instance at 0x00A49BC0>, <imdb.Person.Person instance at 0x00A49F80>, <im
db.Person.Person instance at 0x00A49CD8>, <imdb.Person.Person instance at 0x00A49F58>, <imdb.Person.Person instance at 0x00A49DC8>, <imdb.Person.Perso
n instance at 0x00A49F30>]
film length (metres) = ['3145 m']
locations = ['Hopkins, Minnesota, USA (Reunion Location)']
runtimes = ['112']
... LOTS more info about the movie!

Kent