Duplicates are records with the same values for some or all of the attributes in a data set, and can arise from human errors, data entry mistakes, or merging data from different sources.

The pop() method is a built-in function that removes and returns the last element of a list by default, or the element at a specified index if you provide one as an argument. For example, if you ...

the remove_chars function takes a string as input and uses slicing to create ... by using a single colon in the slicing syntax. For example, to remove the first character only, you can use s[1:], and ...