Unpickling a Python class

Question

I have a problem trying to unpickle subclasses of this class. When I unpickle it, the stuff isn't there. What gives? class Account:

    def __init__(self, server, port, smtp_server, smtp_port):
        self.server = server
        self.port = port
        self.smtp_server = smtp_server
        self.smtp_port = smtp_port

        self.save()

    def save(self):
        #save account for later loading
        self.name = tkFileDialog.asksaveasfilename(title = "Save as..")
        pickle.dump(self, open(self.name, "wr"))

Oh, yeah, the unpickling part is in the same module that this is in, and is called from another module. Yeah, I know it's bad. — LaserDude11
– LaserDude11, Commented Jul 16, 2010 at 13:58

Wolph · Accepted Answer · 2010-07-16 13:50:38Z

1

Does your class inherit object?

Either way, you can specify what you want to pickle by overwriting __getstate__. Otherwise it should normally copy __dict__ if you're inheriting object.

answered Jul 16, 2010 at 13:50

Wolph

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3 Comments

LaserDude11 Over a year ago

Ok. I thought it was a given. I'll try that, thanks. Usually, python knows what I like...

LaserDude11 Over a year ago

No, it didn't work. It still says that it's a nonetype, and doesen't have attributes...

Wolph Over a year ago

So... is it working now? And if not, what class are you inheriting?

LaserDude11 · Accepted Answer · 2010-07-16 14:04:56Z

0

So, Here's how I just figured it out- i moved the ugly pickle stuff (see comment) to the unpickling class, imported the classes I was pickling, and it seems like it works.

answered Jul 16, 2010 at 14:04

LaserDude11

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2 Comments

dalloliogm Over a year ago

nice that you worked it out, but if you had posted the solution here, other people could have benefit from it.

LaserDude11 Over a year ago

I'm actually not sure where that stuff is now, since I stopped using pickle in favor of other forms of serialization.

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