# your code goes here dict = { 'a': {1:'a', 2:'b', 3:'c', 4:'d'}, 'b': {1:'a', 2:'b', 3:'c'} } for column_name in dict: for column_name in temp_dict: print(temp_dict[column_name][column_name])
Standard input is empty
Standard output is empty
Traceback (most recent call last): File "./prog.py", line 7, in <module> NameError: name 'temp_dict' is not defined