python what does 1 mean - 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?

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. The syntax looks like this: The start index specifies the index that the slicing starts from.

https://stackoverflow.com/questions/6167238/what-does-mean

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python - What does [:] mean? - Stack Overflow

It is an example of slice notation, and what it does depends on the type of population. If population is a list, this line will create a shallow copy of the list. For an object of type tuple or a str, it will do nothing (the line will do the same without [:]), and for a (say) NumPy array, it will create a new view to the same data.

https://stackoverflow.com/questions/52395099/meaning-of-list-1-in...

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Meaning of list [-1] in Python - Stack Overflow

[-1] means the last element in a sequence, which in this is case is the list of tuples like (element, count), order by count descending so the last element is the least common element in the original collection. Possible duplicate: stackoverflow.com/questions/509211/…

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.sololearn.com/en/discuss/1838639/python-string-questi...

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Python String question: What does [::-1] mean? - Sololearn

In Python, the syntax ` [::-1]` is used to reverse a string. It is known as string slicing with a step value of -1. Let's break down how it works: - The first colon `:` indicates that we want to slice the entire string. - The second colon `:` indicates the step value.

https://stackoverflow.com/questions/22832615/what-do-and-mean-in-...

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syntax - What do >> and << mean in Python? - Stack Overflow

In C++ terms, this operator is overloaded. In the first example, it is used as a bitwise operator (right shift), # 0b10 -> 0b1000000. # 0b1111101000 -> 0b11111010. While in the second scenario it is used for output redirection. You use it with file objects, like this example: print >>f, 'Hello world' # "Hello world" now saved in foo.txt.

https://www.askpython.com/python/examples/plus-equal-operator

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The += Operator In Python - A Complete Guide - AskPython

In this lesson, we will look at the += operator in Python and see how it works with several simple examples. The operator ‘+=’ is a shorthand for the addition assignment operator. It adds two values and assigns the sum to a variable (left operand). Let’s look at three instances to have a better idea of how this operator works. 1.

https://stackoverflow.com/questions/823561/what-does-mean-in-pyth...

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syntax - What does += mean in Python? - Stack Overflow

+ always returns a newly allocated object, but += should (but doesn't have to) modify the object in-place if it's mutable (e.g. list or dict, but int and str are immutable). In a = a + b, a is evaluated twice. A simple statement is comprised within a single logical line.

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