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!

Obišči visit

Vaše iskanje in ta rezultat

  • Ta iskalni izraz se pojavi v rezultatu: 1 python means
  • Spletna stran se ujema z enim ali več vašimi iskalnimi izrazi
  • Druge spletne strani, ki vključujejo vaše iskalne izraze, povezujejo na ta rezultat
  • Rezultat je v jeziku slovenščina
Python Slicing – How to Slice an Array and What Does [::-1] Mean?

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 smaller than the previous index by 1. This means 2 - 1 which is 1 so the value at this index, which is 2 will be added to the slice.

Obišči visit

Vaše iskanje in ta rezultat

  • Ta iskalni izraz se pojavi v rezultatu: 1 python means
  • Spletna stran se ujema z enim ali več vašimi iskalnimi izrazi
  • Druge spletne strani, ki vključujejo vaše iskalne izraze, povezujejo na ta rezultat
  • Rezultat je v jeziku slovenščina
1] in Python with Examples - Guru99

Role of slicing in Python. In simpler words, a slice means to cut something. It allows dicing a list in python. Here, how slicing is important in Python: ... Example of 1 in Python. Slicing or indexing can be employed to extract a smaller list from a more extensive list. Similarly, it can be used to extract a substring from a larger string.

Obišči visit

Vaše iskanje in ta rezultat

  • Ta iskalni izraz se pojavi v rezultatu: 1 python means
  • Spletna stran se ujema z enim ali več vašimi iskalnimi izrazi
  • Druge spletne strani, ki vključujejo vaše iskalne izraze, povezujejo na ta rezultat
  • Rezultat je v jeziku slovenščina
What Does 'do' Do in Python - Online Tutorials Library

Discover the functionality and purpose of the 'do' statement in Python programming. Learn how it can be utilized effectively in your code. ... step] # slicing from 1st to last in steps of 1 in reverse order arr[::-1] Remember, negative number for step means "in reverse order". Let us now see examples ?

Obišči visit

Vaše iskanje in ta rezultat

  • Ta iskalni izraz se pojavi v rezultatu: 1 python means
  • Spletna stran se ujema z enim ali več vašimi iskalnimi izrazi
  • Druge spletne strani, ki vključujejo vaše iskalne izraze, povezujejo na ta rezultat
  • Rezultat je v jeziku slovenščina
Python Operators - W3Schools

Sets each bit to 1 if both bits are 1: x & y: Try it » | OR: Sets each bit to 1 if one of two bits is 1: x | y: Try it » ^ XOR: Sets each bit to 1 if only one of two bits is 1: x ^ y: Try it » ~ NOT: Inverts all the bits ~x: Try it » << Zero fill left shift: Shift left by pushing zeros in from the right and let the leftmost bits fall off: x ...

Obišči visit

Vaše iskanje in ta rezultat

  • Ta iskalni izraz se pojavi v rezultatu: 1 python means
  • Spletna stran se ujema z enim ali več vašimi iskalnimi izrazi
  • Druge spletne strani, ki vključujejo vaše iskalne izraze, povezujejo na ta rezultat
  • Rezultat je v jeziku slovenščina
Python String question: What does [::-1] mean? - Sololearn

If you leave slots empty, there's a default. [:] means: The whole thing. [::1] means: Start at the beginning, end when it ends, walk in steps of 1 (which is the default, so you don't even need to write it). [::-1] means: Start at the end (the minus does that for you), end when nothing's left and walk backwards by 1. ... In Python, the syntax ...

Obišči visit

Vaše iskanje in ta rezultat

  • Ta iskalni izraz se pojavi v rezultatu: 1 python means
  • Spletna stran se ujema z enim ali več vašimi iskalnimi izrazi
  • Druge spletne strani, ki vključujejo vaše iskalne izraze, povezujejo na ta rezultat
  • Rezultat je v jeziku slovenščina
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. For example, the code block below allows the user to select an option from a menu:

Obišči visit

Vaše iskanje in ta rezultat

  • Ta iskalni izraz se pojavi v rezultatu: 1 python means
  • Spletna stran se ujema z enim ali več vašimi iskalnimi izrazi
  • Druge spletne strani, ki vključujejo vaše iskalne izraze, povezujejo na ta rezultat
  • Rezultat je v jeziku slovenščina
string - What does n [::-1] means in Python? - Stack Overflow

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 Improve this answer

Obišči visit

Vaše iskanje in ta rezultat

  • Ta iskalni izraz se pojavi v rezultatu: 1 python means
  • Spletna stran se ujema z enim ali več vašimi iskalnimi izrazi
  • Druge spletne strani, ki vključujejo vaše iskalne izraze, povezujejo na ta rezultat
  • Rezultat je v jeziku slovenščina
What Does :: Mean in Python? Operator Meaning for Double Colon

You can use the double colon (::) in Python to slice or extract elements in a collection such as a list or string. In this article, you'll learn the syntax and how to use :: to slice a list in Python. You'll also learn how to use the parameters associated with this method of slicing. Python Double Colon (::) Syntax

Obišči visit

Vaše iskanje in ta rezultat

  • Ta iskalni izraz se pojavi v rezultatu: 1 python means
  • Spletna stran se ujema z enim ali več vašimi iskalnimi izrazi
  • Druge spletne strani, ki vključujejo vaše iskalne izraze, povezujejo na ta rezultat
  • Rezultat je v jeziku slovenščina
What is the meaning of "int(a[::-1])" in Python? - Stack Overflow

Now the indexing here and also the step count, support negative numbers. So, if you give a -1 index, it translates to len(a)-1 index. And if you give -x as the step count, then it would step every x'th value from the start index, till the stop index in the reverse direction. For example. a = '1234' print a[3:0:-1] This would return . 432

Obišči visit

Vaše iskanje in ta rezultat

  • Ta iskalni izraz se pojavi v rezultatu: 1 python means
  • Spletna stran se ujema z enim ali več vašimi iskalnimi izrazi
  • Druge spletne strani, ki vključujejo vaše iskalne izraze, povezujejo na ta rezultat
  • Rezultat je v jeziku slovenščina