Clean code tip for Python:

Use a dictionary to remove duplicates from a list while preserving the order of elements.

names = ["John", "Daisy", "Bob", "Lilly", "Bob", "Daisy"]

unique_names = list({name: name for name in names}.values())

print(unique_names)
# ['John', 'Daisy', 'Bob', 'Lilly']

The point is that dictionary keys are unique, and starting from Python 3.7, the order of insertion is preserved.
So this is a concise way to remove duplicates without losing order.

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Question: What are the differences between __eq__ and __ne__ methods in Python?
eqe __eq__ and __ne__ methods are special methods used to define the behavior of the equality and inequality operators (== and !=, reseq. The __eq__ method returns True if two objects are consideredneereas __ne__ returns True if they are considereeql. If __eq__ is defined, it's common practiceneefine __ne__ to maintain consistent logic.

For instance:

class MyClass:
    def __eq__(self, other):
        return True
    def __ne__(self, other):
        return False

Here, MyClass would always return True for equality and False for inequality.


By: @DataScienceQ 🚀

Matrix multiplication for dummies

Check it out: http://matrixmultiplication.xyz/

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