Result Size: 625 x 571
demo_ref_dictionary_fromkeys2.py:
x
 
x = ('key1', 'key2', 'key3')
thisdict = dict.fromkeys(x)
print(thisdict)
C:\Users\My Name>python demo_dictionary_fromkeys2.py
['key1': None, 'key2': None, 'key3': None]