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Count the frequencies in a list in Python

When it comes to data analysis, one of the most common operations you can perform on a list is to count the item frequencies. This operation will return the unique values of your list and the number of times they…

Check if an Element is in a list in Python

Lists are one of the most common data types in Python and are used to store data sequentially. Even if you can add several times the same value, there are cases where you do not want to do that and…