python boolean value of list - PrivacyWall

https://stackoverflow.com/questions/9850245/bool-value-of-a-list-...

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bool value of a list in Python - Stack Overflow

In most cases, you only need to check whether the list is empty or not, you don't really need a boolean value. Python can see that you're evaluating an if statement and it calls bool() itself. If you really then a boolean value (for example, as output) then bool(my_list) is fine of course.

https://www.geeksforgeeks.org/python-boolean-list-initialization/

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Boolean list initialization – Python - GeeksforGeeks

Let's explore several ways to initialize a boolean list in Python. The most efficient way to initialize a boolean list with identical values is by using list multiplication. This approach creates a list with a predefined length and assigns the same boolean value to all elements. Explanation:

https://realpython.com/python-boolean/

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Python Booleans: Use Truth Values in Your Code

It’s possible to assign a Boolean value to variables, but it’s not possible to assign a value to True: File "<stdin>", line 1 SyntaxError: cannot assign to True. Because True is a keyword, you can’t assign a value to it. The same rule applies to False: File "<stdin>", line 1 SyntaxError: cannot assign to False.

https://www.w3schools.com/python/python_booleans.asp

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Python Booleans - W3Schools

Booleans represent one of two values: True or False. In programming you often need to know if an expression is True or False. You can evaluate any expression in Python, and get one of two answers, True or False. When you compare two values, the expression is evaluated and Python returns the Boolean answer:

https://blog.finxter.com/5-best-ways-to-initialize-boolean-lists-...

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5 Best Ways to Initialize Boolean Lists in Python - Finxter

Here we’ll explore methods to efficiently create a list of boolean values based on a given size. For example, creating a list with ten elements all initialized to True. This method involves multiplying a single boolean value by the desired list length. It’s a quick and pythonic way to create a list where all the elements are the same.

https://statisticsglobe.com/append-boolean-list-python

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Append Boolean to List in Python (4 Examples) - Statistics Globe

The most common way to append a boolean to a list is to use the append () method. See the implementation below. As seen above, the boolean value, True, has been appended to the end of my_list. One might also be interested in appending multiple boolean values to a list. You can implement this easily using the extend () method as follows.

https://www.geeksforgeeks.org/python-filter-list-by-boolean-list/

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Python | Filter list by Boolean list - GeeksforGeeks

Define a list bool_list containing the boolean values to filter the list by. Use a list comprehension to iterate over both lists simultaneously using the zip () function. Check if the current element of my_list should be included in the filtered list by checking the corresponding boolean value in bool_list.

https://stackoverflow.com/questions/21448225/getting-indices-of-t...

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python - Getting indices of True values in a boolean list - Stack Overflow

So now I just want to return a list of all the True values and their position. This is all I have but it only return the position of the first occurrence of True (this is just a portion of my code): x = [self.states.index(i) for i in self.states if i == True] This only returns "4" Use enumerate, list.index returns the index of first match found.

https://pythongeeks.org/booleans-in-python/

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Booleans in Python

We will learn booleans, booleans of the constructs, operation on booleans, and operators that return booleans in Python. So, let’s get started. 1. True and. 2. False. Let us first talk about declaring a boolean value and checking its data type.

https://docs.python.org/3/library/stdtypes.html

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Built-in Types — Python 3.13.3 documentation

Any object can be tested for truth value, for use in an if or while condition or as operand of the Boolean operations below. By default, an object is considered true unless its class defines either a __bool__() method that returns False or a __len__() method that returns zero, when called with the object. [1] .

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