this is my python code 

```
mylist = ['a', 'f', 'z']
old_d = {'a': 'aaa', 'b': 'bbb', 'c': 'ccc', 'f': 'fff', 'g':'ggg', 'z':'zzz'} 
new_d = {}
for key in mylist:
    new_d[key] = old_d[key]

```

Can we write the above code using list comprehensions or something similar like 

```
new_d[key] = old_d[key] for key in mylist 

```