Jun 17, 2015 · s[1:] == s[:-1] compares s without the first element with s without the last element, i.e. 0th with 1st, 1st with 2nd etc, giving you an array of len(s) - 1 boolean elements. …

Apr 5, 2012 · You can slice a string like so: stringname[x:y:z]. This will refer to a subsection of the string, stringname. x refers to the starting position, y to the end position (remember in python, …

Feb 16, 2015 · This is explained nicely in Understanding slice notation, in the Python docs under "extended slicing", and in this blogpost: Python Slice Examples: Start, Stop and Step Share …

Mar 20, 2013 · 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. …

Feb 2, 2022 · note you're asking about s[1:] + s[0] but your example shows (s[1:]) + s[0]. think of s[0], existing outside of parenthesis, as a known value being "remembered" while s[1:], in …

Sep 15, 2022 · 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.

Dec 8, 2022 · Here, we specify a start of index 2, no end, and a step of -1. Slicing here will start from index 2 which is 3. The negative steps mean the next value in the slice will be at an index …

Dec 27, 2024 · A string is a sequence of characters. Python treats anything inside quotes as a string. This includes letters, numbers, and symbols. Python has no character data type so …

Jul 25, 2013 · When you put brackets behind a variable containing a list, you create a copy of a portion of that list. You can give it up to three numbers. The first number is the starting index, …

Jun 10, 2019 · 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 …