Hi all, hope you can help me understanding why the following happens:
In [213]: g = {'a': ['a1','a2'], 'b':['b1','b2']} In [214]: rg = dict.fromkeys(g.keys(),[]) In [215]: rg Out[215]: {'a': [], 'b': []} In [216]: rg['a'].append('x') In [217]: rg Out[217]: {'a': ['x'], 'b': ['x']}What I meant was appending 'x' to the list pointed by the key 'a' in the dictionary 'rg'. Why rg['b'] is written too?
Thanks. -- http://mail.python.org/mailman/listinfo/python-list