dump a multi dimensional dictionary

[cerr]

Hi,

Can I somehow use pickle.dump() to store a dictionary of lists to a file?
I tried this:

    >>> import pickle
    >>> mylist = []
    >>> mydict = {}
    >>> mylist = '1','2'
    >>> mydict['3'] = mylist
    >>> fhg = open ("test", 'w')
    >>> pickle.dump(fhg,mydict)
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "/usr/lib/python2.7/pickle.py", line 1370, in dump
        Pickler(file, protocol).dump(obj)
      File "/usr/lib/python2.7/pickle.py", line 203, in __init__
        self.write = file.write
    AttributeError: 'dict' object has no attribute 'write'
    >>> print mydict
    {'3': ('1', '2')}

or should I just write my own dump function that can hanle thiS?

Please advise!

Thanks,
Ron