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

Working on a python assignment and was curious as to what [:-1] means in the context of the following code: instructions = f.readline()[:-1] Have searched on here on S.O. and on Google but to no avail. Would love an explanation!

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Python Operators - W3Schools

Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. Operator Name Description Example Try it & AND Sets each bit to 1 if both bits are 1

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[::-1] in Python with Examples - Guru99

Difference between a[-1] and a[::-1] in Python A [-1] is used for negative indexes and helps select items in reverse order in a given list. It signifies the beginning of the list from the end of the reverse order. Here, [-1] signifies the first item from the last position. The ...

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

is used. Indexing in Python is a way to refer to individual items by their position within a list. 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 ...

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Python Operators - GeeksforGeeks

In Python programming, Operators in general are used to perform operations on values and variables. These are standard symbols used for logical and arithmetic operations. In this article, we will look into different types of Python operators.OPERATORS: These are the special symbols.These are the special symbols.

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Python Operators Cheat Sheet | LearnPython.com

Python Comparison Operators Comparison operators are used to compare two values.They return a Boolean value (True or False) based on the comparison result.These operators are often used in conjunction with if/else statements in order to control the flow of a program. of a program.

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The Python Tutorial — Python 3.13.3 documentation

Python is also suitable as an extension language for customizable applications. This tutorial introduces the reader informally to the basic concepts and features of the Python language and system. It helps to have a Python interpreter handy for hands-on experience, but all examples are self-contained, so the tutorial can be read off-line as well.

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Operators and Expressions in Python

In Python, operators are special symbols, combinations of symbols, or keywords that designate some type of computation. You can combine objects and operators to build expressions that perform the actual computation. So, operators are the building blocks of expressions.

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Python Operators (With Examples) - Programiz

6. Python Special operators Python language offers some special types of operators like the identity operator and the membership operator. They are described below with examples. Identity operators In Python, is and is not are used to check if two values are located at the same memory location. ...

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regex - python regular expression "\1" - Stack Overflow

The following code using Python regex to find the repeating digits in given string import re result = re.search(r'(\d)\1{3}','54222267890' ) print result.group() This gives the output: 2222 Share Improve this answer Follow edited May 11, 2022 at 12:10 11.1k 4 4 gold 41 ...

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