what is 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.guru99.com/1-in-python.html

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1] in Python with Examples - Guru99

There are two ways to represent 1 in python as described below: –. It can be represented in a simple square bracket with no colon and another method with double colon syntax. An iterable sequence such as a list or string can be parsed to item level using [] brackets. Within the [] brackets, one has to provide different indexes.

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://thinglabs.io/python-increment-by-1-a-guide-to-simple-coun...

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Python Increment by 1: A Guide to Simple Counting in Code

Python does not have built-in increment or decrement operators (++ and --). The most common way to increment a variable by 1 is using the assignment operator (+=). The addition operator (+) can also be used, but it creates a new object and reassigns it to the variable. Functions like operator.add offer alternative ways, but are less commonly used.

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

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

Indexing is used to directly access the elements of choice within a list for further use. The default index starts from 0 and goes on till n-1. Here n denotes the total number of elements in the respective data structure. Below are the types of Indexing: Positive Indexing: Starts from 0 and increases.

https://www.tutorialspoint.com/what-does-do-in-python

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What Does 'do' Do in Python - Online Tutorials Library

Slicing in Python gets a sub-string from a string. The slicing range is set as parameters i.e. start, stop and step. For slicing, the 1st index is 0. For negative indexing, to display the 1st element to last element in steps of 1 in reverse order, we use the [::-1]. The [::-1] reverses the order. In a similar way, we can slice strings like this.

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://pythonguides.com/sets/

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Python Sets - Python Guides

Python sets are an important built-in data type that represent unordered collections of unique elements. They are handy for removing duplicates and performing mathematical set operations like unions, intersections, and differences. What is a Python Set? A set in Python is a collection of distinct hashable objects. Unlike lists or tuples, sets ...

https://stackoverflow.com/questions/41446833/what-is-the-differen...

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python - What is the difference between i = i + 1 and i += 1 in a 'for ...

But to explicitly write into the same memory you could use i[:] = i+1 (but it's generally better to use += or the out -argument of several ufuncs).

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