python boolean list all true - PrivacyWall

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

I have a piece of my code where I'm supposed to create a switchboard. I want to return a list of all the switches that are on. Here "on" will equal True and "off" equal False.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):

https://stackoverflow.com/questions/12765833/counting-the-number-...

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Counting the number of True Booleans in a Python List

list has a count method: >>> [True,True,False].count(True) 2 This is actually more efficient than sum, as well as being more explicit about the intent, so there's no reason to use sum:. In [1]: import random In [2]: x = [random.choice([True, False]) for i in range(100)] In [3]: %timeit x.count(True) 970 ns ± 41.1 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each) In [4]: %timeit ...

https://stackoverflow.com/questions/5683875/every-element-of-list...

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python - every element of list is True boolean - Stack Overflow

I don't know python very well, but why can't you just scan the list and count how many elements are true, then if you find only one the answer is "yes", otherwise is "no". These are functions you usually write in the first 2-3 months of learning programming basics.

https://stackoverflow.com/questions/3673337/what-is-the-most-pyth...

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python - What is the most 'pythonic' way to logically combine a list of ...

I have a list of booleans I'd like to logically combine using and/or. The expanded operations would be: vals = [True, False, True, True, True, False] # And-ing them together result = True for item in vals: result = result and item # Or-ing them together result = False for item in vals: result = result or item

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

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Boolean list initialization – Python - GeeksforGeeks

We are given a task to initialize a list of boolean values in Python. A boolean list contains elements that are either True or False. Let's explore several ways to initialize a boolean list in Python. Using List Multiplication. The most efficient way to initialize a boolean list with identical values is by using list multiplication.

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

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Python all() Function - W3Schools

Python Lists Access List Items Change List Items Add List Items Remove List Items Loop Lists List Comprehension Sort Lists Copy Lists Join Lists List Methods List Exercises. ... The all() function returns True if all items in an iterable are true, otherwise it returns False. If the iterable object is empty, the all() function also returns True ...

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

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Python's all (): Check Your Iterables for Truthiness

In the first example, the input list contains regular Python objects, including a string, a number, and a dictionary.In this case, all_true() returns False because the dictionary is empty and evaluates to false in Python. To perform truth value testing on objects, Python has an internal set of rules for objects that evaluate as false:. Inherently negative constants, like None and False

https://blog.finxter.com/how-to-apply-a-logical-operator-to-all-e...

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{AND, OR, NOT} How to Apply Logical Operators to All List ... - Finxter

The challenge in the puzzle is to know that Python comes with implicit Boolean type conversion: every object has an associated Boolean value.Per convention, all objects are True except “empty” or “zero” objects such as [], '', 0, and 0.0.Thus, the result of the function call all([True, True, 0]) is False.. Where to Go From Here?

https://datascienceparichay.com/article/python-check-if-all-eleme...

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Python – Check if All Elements in List are True

[True, True, True, True] [False, True, False, True] [] Here, we created three lists – ls1, ls2, and ls3.The list ls1 contains only True as its elements. The list ls2 has repeated values but not all values are True and the list ls3 is empty (it does not contain any elements).. Example 1 – Check if all the list elements are True using all(). As mentioned earlier, the all() function returns ...

https://note.nkmk.me/en/python-all-any-usage/

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How to use all() and any() in Python | note.nkmk.me

Truth value testing in Python. Python uses the bool type (True and False), but it also evaluates other types, such as numbers and strings, as true or false in conditions such as if statements. Built-in Types - Truth Value Testing — Python 3.12.1 documentation; The following objects are considered false, as in the official documentation above.

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