Python Dictionary DataStructure which method d[] or d.get()?

Question

While Using Python Dictionary DataStructure (which contains key-value pair) if i want to retrieve some value from my Dictionary i have two options d[\'\'] and g.get(\'key

Answer 1

The difference is that if the key is missing, d[key] will raise a KeyError exception, whereas d.get(key) will return None (and d.get(key, default) will return a default value).

There are no noticeable differences in memory requirements.