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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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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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Negative Indexing in Python List – How to Use “-1” Parameter
A Python list can have many elements, and refer to a particular element among hundreds of elements present in them, indexing 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 ...
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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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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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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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Python increment by 1 - AskPython
To increment a variable by 1 in Python, you can use the augmented assignment operator +=.This operator adds the right operand to the left operand and assigns the result to the left operand. For example, if you have a variable x with the value 5, you can increment it by 1 using the following code:
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python - Using in range(..) in an if-else statment - Stack Overflow
python 2.7 Is it possible to do this: print "Enter a number between 1 and 10:" number = raw_input("> ") if number in range(1, 5): print "You entered a number in the range of 1 to 5" elif ... For the sake of completeness, the in operator may be used as a boolean operator testing for attribute membership. ...
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Python Slicing – How to Slice an Array and What Does [::-1] Mean? - freeCodeCamp.org
We also accessed the second value by using square brackets and its index in the order, which is 1. How to Slice an Array in Python Let's say you want to slice a portion of this array and assign the slice to another variable. ...