shelve object back to dictionary

[Fredrik Lundh]

Ryan Krauss wrote:

> Is there an easy way to convert a shelved object back to a dictionary?
>  When I save a dictionary using shelve and then load it in a later
> session, I have an object whose property names are the keys of the
> dictionary used as an input to shelve.  For example, instead of
> user['name'] I have user.name.  I would prefer to have the scripts I
> write to analyze the saved data have a similar syntax to the ones I
> used to create it, so I would rather deal with a dictionary after I
> load the shelved data.

session 1:

>>> import shelve
>>> db = shelve.open("foo")
>>> d = {"a": 1, "b": 2}
>>> db["key"] = d
>>> print d
{'a': 1, 'b': 2}
>>> print db["key"]
{'a': 1, 'b': 2}
>>> db.close()

session 2:

>>> import shelve
>>> db = shelve.open("foo")
>>> db["key"]
{'a': 1, 'b': 2}
>>> type(db["key"])
<type 'dict'>
>>> db["key"].key
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
AttributeError: 'dict' object has no attribute 'key'
>>>

are you sure you're saving dictionaries?  what does "print type(obj)" print
for objects from your shelve?  what does the following print for your data-
base ?

>>> import anydbm
>>> db = anydbm.open("<insert shelve name here>")
>>> db[db.keys()[0]]

</F>