runtimequestion 147 Advanced Functions & Recursion · medium
Fill in the missing fields
Product records arrive from suppliers with fields left out or set to None. Before import, each record is completed with the shop's default values, which differ from call to call. Write fill_missing(record, **defaults): return a new dictionary with every field of record, plus each default for a field that is absent or None. A field that has a real value keeps it, even when that value is 0 or "".
Function
fill_missing(record, **defaults)recorda dictionary of field names to values
defaultsany number of named arguments, such as
colour="black"Returnsa new dictionary;
record itself is left unchangedExamples
callfill_missing({'sku': 'SPO-11681', 'colour': None, 'stock': 0}, colour='black', stock=10, material='cotton')returns{'sku': 'SPO-11681', 'colour': 'black', 'stock': 0, 'material': 'cotton'}
callfill_missing({'sku': 'HOM-22847', 'size': 'L'}, colour='white')returns{'sku': 'HOM-22847', 'size': 'L', 'colour': 'white'}
callfill_missing({'sku': 'ELE-24781', 'warranty': None}, warranty=12)returns{'sku': 'ELE-24781', 'warranty': 12}