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Python FTW: Under the Hood

Not Knot!

Explore how Python evaluates expressions involving the not and == operators, understand operator precedence rules, and recognize why some expressions cause syntax errors.

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Not True equals False but True does not equal not False. Wait, what? Run the codes below to see for yourself.

Python 3.5
x = True
y = False
print(not x == y)
Python 3.5
x = True
y = False
print(x == not y)

Explanation

  • Operator precedence affects how an expression is evaluated, and the == operator
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