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  1. boolean - 'True' and 'False' in Python - Stack Overflow

    In the context of Boolean operations, and also when expressions are used by control flow statements, the following values are interpreted as false: False, None, numeric zero of all …

  2. python - Is False == 0 and True == 1 an implementation detail or …

    In Python 2.x this is not guaranteed as it is possible for True and False to be reassigned. However, even if this happens, boolean True and boolean False are still properly returned for …

  3. What is Truthy and Falsy? How is it different from True and False?

    Python determines the truthiness by applying bool() to the type, which returns True or False which is used in an expression like if or while. Here is an example for a custom class Vector2d and …

  4. python - why is the expression "true or true and false" true?

    May 13, 2021 · Python documentation gives you the operator precedence, including that "and" is higher than "or". Where are you confused?

  5. python - Boolean identity == True vs is True - Stack Overflow

    NOTE: I am aware of Python booleans - if x:, vs if x == True, vs if x is True. However, it only addresses whether if foo, if foo == True, or if foo is True should generally be used to determine …

  6. python - What is the correct way to check for False? - Stack Overflow

    You generally don't explicitly compare objects to False / True in Python. Just do if somevalue: or if not somevalue:

  7. Converting from a string to boolean in Python - Stack Overflow

    How do I convert a string into a boolean in Python? This attempt returns True: >>> bool ("False") True

  8. Why is `True is False == False`, False in Python? [duplicate]

    Jul 11, 2015 · So, when Python tries to evaluate the expression True is False == False, it encounters the operators is and == which have the same precedence, so it performs chaining …

  9. python - True + True = 2. Elegantly perform boolean arithmetic?

    Jul 8, 2016 · In Python, True == 1 and False == 0, as True and False are type bool, which is a subtype of int. When you use the operator +, it is implicitly adding the integer values of True …

  10. How can I map True/False to 1/0 in a Pandas DataFrame?

    I have a column in python pandas DataFrame that has boolean True/False values, but for further calculations I need 1/0 representation. Is there a quick pandas/numpy way to do that?