use of 1 in python - PrivacyWall

https://stackoverflow.com/questions/15535205/what-does-1-mean-do-...

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What does [:-1] mean/do in python? - Stack Overflow

Sometimes -1 is used to express the end of an array of things. My guess is this means to read from beginning to the end of the line (but just a guess, hence not an official answer). I'm not sure it's a dup, because of that "in the context of…" part—which is the part that you and, especially, Pavel Anossov answered.

https://www.freecodecamp.org/news/python-slicing-how-to-slice-an-...

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Python Slicing – How to Slice an Array and What Does [::-1] Mean?

Here's an example array in Python: We created an array of integer values from 1 to 5 here. We also accessed the second value by using square brackets and its index in the order, which is 1. Let's say you want to slice a portion of this array and assign the slice to another variable. You can do it using colons and square brackets.

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

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Python Operators - W3Schools

Operators are used to perform operations on variables and values. In the example below, we use the + operator to add together two values: Python divides the operators in the following groups: Arithmetic operators are used with numeric values to perform common mathematical operations: Assignment operators are used to assign values to variables:

https://www.geeksforgeeks.org/python-list-slicing/

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Python List Slicing - GeeksforGeeks

Python list slicing is fundamental concept that let us easily access specific elements in a list. In this article, we’ll learn the syntax and how to use both positive and negative indexing for slicing with examples. Example: Get the items from a list starting at position 1 and ending at position 4 (exclusive). Parameters:

https://www.askpython.com/python/list/negative-indexing

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Negative Indexing in Python List – How to Use “-1” Parameter

In Python, objects are “zero-indexed”, which means that position counting starts at zero, 5 elements exist in the list, then the first element (i.e. the leftmost element) holds position “zero”, then After the first element, the second, third and fourth place.

https://docs.python.org/3/tutorial/index.html

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The Python Tutorial — Python 3.13.3 documentation

Python’s elegant syntax and dynamic typing, together with its interpreted nature, make it an ideal language for scripting and rapid application development in many areas on most platforms.

https://realpython.com/python-operators-expressions/

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Operators and Expressions in Python

Python operators enable you to perform computations by combining objects and operators into expressions. Understanding Python operators is essential for manipulating data effectively.

https://www.programiz.com/python-programming/operators

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Python Operators (With Examples) - Programiz

Operators are special symbols that perform operations on variables and values. For example, Here, + is an operator that adds two numbers: 5 and 6. Here's a list of different types of Python operators that we will learn in this tutorial. 1. Python Arithmetic Operators.

https://stackoverflow.com/questions/6392739/what-does-the-at-symb...

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What does the “at” (@) symbol do in Python? - Stack Overflow

An @ symbol at the beginning of a line is used for class and function decorators: An @ in the middle of a line is probably matrix multiplication: @ as a binary operator. def __init__(self): self.toppings = [] def __call__(self, topping): # When using '@instance_of_pizza' before a function definition. # the function gets passed onto 'topping'.

https://pythonguides.com/conditional-statements-and-loops/

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Python Conditional Statements and Loops

Read all the tutorials related to the topic of Python Sets. Loops in Python. Loops allow you to execute a block of code multiple times. Python provides two main types of loops: for loops and while loops. For Loops. The for loop in Python is designed to iterate over a sequence (like a list, tuple, dictionary, set, or string):

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