Unshelving the data?

[Uncle Ben]

Shelving is a wonderfully simple way to get keyed access to a store of
items. I'd like to maintain this cache though.

Is there any way to remove a shelved key once it is hashed into the
system? I could do it manually by removing the value and erasing the
key in the directory list. But is there a more elegant way?

Or should I to go the full database route? It is not a lage
application.

Ben

 

[Chris Torek]

Shelving is a wonderfully simple way to get keyed access to a store of
items. I'd like to maintain this cache though.

Is there any way to remove a shelved key once it is hashed into the
system?

$ pydoc shelve
....
To summarize the interface (key is a string, data is an arbitrary
object):
...
d[key] = data # store data at key (overwrites old data if
# using an existing key)
data = d[key] # retrieve a COPY of the data at key (raise
# KeyError if no such key) -- NOTE that this
# access returns a *copy* of the entry!
del d[key] # delete data stored at key (raises KeyError
# if no such key)
...

Seems pretty straightforward. Are you having some sort
of problem with "del"?

 

[Adam Tauno Williams]

Shelving is a wonderfully simple way to get keyed access to a store of
items. I'd like to maintain this cache though.
+1

Is there any way to remove a shelved key once it is hashed into the
system? I could do it manually by removing the value and erasing the
key in the directory list. But is there a more elegant way?

del shelve[key]

Or should I to go the full database route? It is not a lage
application.

Stick with shelves. Much simpler.

 

[Uncle Ben]

Shelving is a wonderfully simple way to get keyed access to a store of
items. I'd like to maintain this cache though.
+1

Is there any way to remove a shelved key once it is hashed into the
system?  I could do it manually by removing the value and erasing the
key in the directory list. But is there a more elegant way?

del shelve[key]

Or should I to go the full database route?  It is not a lage
application.

Stick with shelves.  Much simpler.

Thanks. And Chris, thanks for showing me 'pyco'. I had looked in six
thick books and had not found anything on removing keys.

Ben