what does 1 do 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

It slices the string to omit the last character, in this case a newline character: Since this works even on empty strings, it's a pretty safe way of removing that last character, if present: This works on any sequence, not just strings.

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://stackoverflow.com/questions/28535392/what-does-n-1-means-...

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string - What does n [::-1] means in Python? - Stack Overflow

It means, "start at the end; count down to the beginning, stepping backwards one step at a time." The slice notation has three parts: start, stop, step: If the start and stop aren't specified, it means to go through the entire sequence:

https://www.geeksforgeeks.org/python-do-while/

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Python Do While Loops - GeeksforGeeks

Do while loop is a type of control looping statement that can run any statement until the condition statement becomes false specified in the loop. In do while loop the statement runs at least once no matter whether the condition is false or true. Syntax of do while loop: // statement or . // set of statements.

https://realpython.com/python-operators-expressions/

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Operators and Expressions in Python

Python operators enable you to perform computations by combining objects and operators into expressions. Understanding Python operators is essential for manipulating data effectively.

https://learnpython.com/blog/python-operators-cheat-sheet/

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Python Operators Cheat Sheet - LearnPython.com

Python operators are special symbols or keywords used to perform specific operations. Depending on the operator, we can perform arithmetic calculations, assign values to variables, compare two or more values, use logical decision-making in our programs, and more.

https://stackoverflow.com/questions/58958512/slicing-what-does-1-...

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python - Slicing: What does [:,:-1] and [:,-1] mean? - Stack Overflow

: denotes "all", and -1 in indexing means the last row/column. However, ":-1" in [:,:-1] does arithmetic operation of indexes - which here means 'total no of columns - 1'. I think there is an error here. " [:,-1]: This will take all rows and all columns." --> I think it should be all rows and the last column only. Thanks for pointing it out.

http://python-reference.readthedocs.io/en/latest/docs/operators/s...

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-= Subtraction Assignment — Python Reference (The Right Way) 0.1 ...

Subtracts a value from the variable and assigns the result to that variable. A -= B. Any valid object. According to coercion rules. #TODO. Equivalent to A = A - B. #TODO. © Copyright 2015, Jakub Przywóski. Revision 9a3b94e7. Built with Sphinx using a theme provided by Read the Docs.

https://www.askpython.com/python/examples/colon-in-python

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Colon in Python - Why do we use (:) in Python? - AskPython

In slicing, the programmer specifies the starting index and the ending index and separates them using a colon which is the general syntax of slicing. A colon is used to identify the keys in dictionaries. There are many more uses of the colon in Python and we’ll practically use the functions below.

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