/Python/Python count number of unique elements in a list

Python count number of unique elements in a list

# Basic syntax:
len(set(my_list))
# By definition, sets only contain unique elements, so when the list
# is converted to a set all duplicates are removed. 

# Example usage:
my_list = ['so', 'so', 'so', 'many', 'duplicated', 'words']
len(set(my_list))
--> 4

# Note, list(set(my_list)) is a useful way to return a list containing
#	only the unique elements in my_list

Source: stackoverflow.com

Similar codes

0 vote166 views1 answer
How to read a pkl file in python
Python
5 votes179 views2 answers
Use selenium without opening browser
Python
1 vote145 views1 answer
How to make markdown cell in jupyter notebook
Python
3 votes144 views1 answer
Comparing two dataframe columns
Python
0 vote150 views1 answer
Reolace double space ti single space in python'
Python
1 vote147 views1 answer
Todense()
Python
1 vote153 views1 answer
Pandas find median of non zero values in a column
Python
0 vote138 views1 answer
Python - change the bin size of an histogram+
Python
0 vote113 views1 answer
Get label text tkinter
Python
1 vote157 views3 answers
Isinstance python
Python