What is the recommended way to break a long if statement? (W504 line break after binary operator)

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If we consult the documentation on flake 8 we see:

Anti-pattern

Note: Despite being in the anti-pattern section, this will soon be
considered the best practice.

income = (gross_wages
          + taxable_interest)

Best practice

Note: Despite being in the best practice section, this will soon be
considered an anti-pattern.

income = (gross_wages +
          taxable_interest)

So the line break before the binary operator will be considered best practice.

The documentation for W504, advices the operator before the new line as best practice, without the given note:

Anti-pattern

income = (gross_wages +
          taxable_interest)

Best practice

income = (gross_wages
          + taxable_interest)

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