machine learning

python 3.8.6 Positional-only parameters

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python 3.8.6 Positional-only parameters

The Python 3.8 series is the newest feature release by the Python language, and it contains many updated features. So let’s see the “What is exactly new in python 3.8.6 ?” One of the most important feature is python 3.8.6 Positional-only parameters , so let’s see : In this article, we will learn Positional-only parameter … Read more

Python 3.8.6 is finally available for download

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Python 3.8.6 is the 6th maintenance release version of Python 3.8.  If you want to download it, then go get it here: https://www.python.org/downloads/release/python-386/ We inform that you python 3.8 Maintenance series will continue at regular bi-monthly intervals, with 3.8.7 planned for end of mid-November 2020. What is exactly new in python 3.8.6 ? The Python … Read more

Immediately upgrade python version 3.5 to the latest version

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Immediately Upgrate Python Version 3.5 To The Latest Version

On October 2 2020 Finally, python 3.5 is out of support i.e. there will be no more any bug fixes or security patches for the 3.5 series, and as such Python version 3.5.10 will be the final release. So what is exact solution for this problem? For remaining python 3.5 users it need to upgrade … Read more

python trending terminology course ebook

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python trending terminology course ebook

python trending terminology course ebook

Hello everyone, congrats!! python tutorials point publish python trending course written by Mr. Pagar Sachin so Let’s start to see It’s the specification:

 

Become a Python Programming Expert With Ease!

python trending terminology course ebook
python trending terminology course ebook
 

Click on BUY THIS EBOOK

Finally what you will learn after Buy this E-book (python tutorials point):

 INDEX :
section name of Topic
1.Chapter 117 interesting facts about python language
2.Chapter 2Python Comparison Operators
3.Chapter 3operator precedence in python
4.Chapter 4python list append multiple times
5.Chapter 5Use counter in python 3
6.Chapter 6Event handling in python tutorials point
7.Chapter 7Inheritance in python tutorials point
8.Chapter 8python  vs r vs sas vs spss
9.Chapter 9 what are python identifiers with example
10.Chapter 10 Modulo Operator python-modulus
11.Chapter 11Remove duplicates from a list in python 3
12.Chapter 12python 3 get user input54-
13.Chapter 13Create a two-dimensional array in python language
14.Chapter 1410 ways to iterate through a list in python
15.Chapter 15 Learn Different python terminologies

How to remove duplicates from list in python 3

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How to remove duplicates from list in python 3 :

Hello friends, In this article, we will see How to remove duplicates items or elements from the list in python so Let’s start :
How to remove duplicates from list in python 3
How to remove duplicates from list in python 3
 
There are different way to remove duplicates from list :
  1. Method 1 : Using list comprehension method
  2. Method 2 : Using list comprehension + enumerate() method
  3. Method 3 : Using set() method
  4. Method 4 : Naive method
  5. Method 5 : Using collections.OrderedDict.fromkeys() method

Method 1 : Using list comprehension method

This method has working similar to the Naive method , but small difference is it just a liner shorthand of longer methods done with the help of lists comprehension method.

For example :

# Demonstrate Python 3 code 
# remove duplicated from list using list comprehension
#  first we initializing list 
use_list = [4, 3, 7, 6, 3, 5, 7, 1] 
print (“The main/original list is : ” +  str(use_list)) 
# then we use using list comprehension method  
# to remove from list  
rest = [] 
[rest.append(x) for x in use_list if x not in rest] 
  
# printing list output after removal  
print (“The unique list after removing dupli is follow: ” + str(rest)) 
Output :
The main/original list is : [4, 3, 7, 6, 3, 5, 7, 1] 
The unique list after removing dupli is follow : [4, 3, 7, 6, 5, 1]
This time to learn different python terminologies in python.

Method 2 : Using list comprehension + enumerate()

list comprehension coupled with enumerate function can also achieve this task. It basically looks for already occurred elements and skips adding them. It preserves the list ordering.
# removing duplicated from list using list comprehension + enumerate() 
# first initializing list 
use_list = [4, 3, 7, 6, 3, 5, 7, 1] 
print (“The main/original list is : ” +  str(use_list)) 
# using list comprehension + enumerate() method to remove duplicated  
# from  the list  
rest = [i for n, i in enumerate(use_list) if i not in test_list[:n]]  
print (“TThe unique list after removing dupli is follow : ” + str(rest)) 
Output :
The main/original list is : [4, 3, 7, 6, 3, 5, 7, 1] 
The unique list after removing dupli is follow: [4, 3, 7, 6, 5, 1]

Method 3 : Naive method

In this method (naive method), we simply append the first occurrence of the element in new existing list and ignore all the other occurrences of the list.
# Demonstrate Python program 
# remove duplicated element from list using list Naive method
#  first we initializing list 
use_list = [4, 3, 7, 6, 3, 5, 7, 1] 
print (“The main/original list is : ” +  str(use_list)) 
# then we use using list Naive method  
rest = [] 
for i in test_list: 
    if i not in rest: 
        rest.append(i) 
  
# printing output after removal  
print (“The unique list after removing dupli is follow: ” + str(rest)) 
Output :
The main/original list is : [4, 3, 7, 6, 3, 5, 7, 1] 
The unique list after removing dupli is follow: [4, 3, 7, 6, 5, 1]

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