pylint-errors
C0201 (consider-iterating-dictionary)
Problematic code:
data = {'x': 1, 'y': 2, 'z': 3} for key in data.keys(): pass 
Correct code:
data = {'x': 1, 'y': 2, 'z': 3} for key in data: pass Rationale:
Emitted when the keys of a dictionary are iterated through the .keys() method. It is enough to just iterate through the dictionary itself, as in for key in dictionary.