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My Code :
dict( (k,v) if k in ['1','2','3','4'] else (k,None) for k,v in {'1':'one','2':'two'}.items() )
Expected Output :
{'1': 'one', '2': 'two', '3':None, '4':None}
Actual Output :
{'1': 'one', '2': 'two'}
Please help !
The
forclause only contains 2 items, so your final dict is only going to have 2 items. The 4-item list is only used as a comparison, not as a source of values to use.