insert,reverse,sort,pop and remove elements from list

 Python 3.9.1 (tags/v3.9.1:1e5d33e, Dec  7 2020, 17:08:21) [MSC v.1927 64 bit (AMD64)] on win32

Type "help", "copyright", "credits" or "license()" for more information.

>>> ##list methods and functions e.g-sum(),max(), min(),any(), len(),all()

>>> numbers=[2,4,6,8,10]

>>> numbers.insert(12)

Traceback (most recent call last):

  File "<pyshell#2>", line 1, in <module>

    numbers.insert(12)

TypeError: insert expected 2 arguments, got 1

>>> numbers.insert[12]

Traceback (most recent call last):

  File "<pyshell#3>", line 1, in <module>

    numbers.insert[12]

TypeError: 'builtin_function_or_method' object is not subscriptable

>>> numbers.insert(-1,12)

>>> numbers

[2, 4, 6, 8, 12, 10]

>>> numbers.insert(5,14)

>>> numbers

[2, 4, 6, 8, 12, 14, 10]

>>> numbers.(reverse=False

 

SyntaxError: invalid syntax

>>> numbers.sort(reverse=False)

>>> numbers

[2, 4, 6, 8, 10, 12, 14]

>>> numbers.sort(reverse=False)

>>> numbers

[2, 4, 6, 8, 10, 12, 14]

>>> numbers.sort(reverse=True)

>>> numbers

[14, 12, 10, 8, 6, 4, 2]

>>> numbers.sort()

>>> numbers

[2, 4, 6, 8, 10, 12, 14]

>>> numbers1=[2,4,6,8,10,14,12]

>>> numbers.sort(reverse=False)

>>> numbers

[2, 4, 6, 8, 10, 12, 14]

>>> numbers2=[2,4,8,6]

>>> numbers2.sort(reverse=True)

>>> numbers2

[8, 6, 4, 2]

>>> numbers=[2,4,8,6]

>>> numbers.sort()

>>> numbers

[2, 4, 6, 8]

>>> numbers.reverse()

>>> 

>>> numbers

[8, 6, 4, 2]

>>> ##pop(index):-pop removes an element at the specified index and return the removed element

>>> numbers.pop(-1)

2

>>> numbers

[8, 6, 4]

>>> ##remove(value):-removes the specified element

>>> numbers.removes(4)

Traceback (most recent call last):

  File "<pyshell#34>", line 1, in <module>

    numbers.removes(4)

AttributeError: 'list' object has no attribute 'removes'

>>> numbers.remove(4)

>>> numbers

[8, 6]

>>> 

Comments

Popular posts from this blog

XAMPP, SQL BASIC COMMANDS

The Minion Game Hackerrank Solution

Arrays - DS | HackerRank Solutions