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://stackoverflow.com/questions/31633635/what-is-the-meaning-...

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What is the meaning of "int(a[::-1])" in Python? - Stack Overflow

So, when you do a[::-1], it starts from the end towards the first taking each element. So it reverses a. This is applicable for lists/tuples as well. Example - Then you convert it to int and then back to string (Though not sure why you do that) , that just gives you back the string.

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.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.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://wiki.python.org/moin/BitwiseOperators

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BitwiseOperators - Python Wiki

So -1 is complement (1 - 1) = complement (0) = "11111111", and -10 is complement (10 - 1) = complement (9) = complement ("00001001") = "11110110". This means that negative numbers go all the way down to -128 ("10000000"). Of course, Python doesn't use 8-bit numbers.

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://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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