.rsplit()

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Published Oct 7, 2023
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The .rsplit() method in Python is a string method that splits a string into a list of substrings from the right end of the string based on a specified delimiter. It is similar to the .split() method but works in the opposite direction.

Syntax

str.rsplit(separator, maxsplit)
  • str: The string to be split.
  • separator (optional): This is the delimiter based on which the string will be split. If not specified, any whitespace (spaces, tabs, and newlines) will be used as the separator.
  • maxsplit (optional): This parameter specifies the maximum number of splits. It determines the maximum number of elements in the returned list. If not specified or set to -1, there is no limit on the number of splits.

Example 1

In this example, the .rsplit() method is applied to the string sentence without specifying a separator. It splits the string from the right based on whitespace, resulting in a list of words.

sentence = "This is a sample sentence."
words = sentence.rsplit()
print(words)

This results in the following output:

['This', 'is', 'a', 'sample', 'sentence.']

Example 2

In this example, the .rsplit() method is employed to split the full_name string from the right, with a maxsplit parameter set to 1. This effectively separates the last name from the rest of the full name.

full_name = "John Doe Smith"
first_name, last_name = full_name.rsplit(maxsplit=1)
print("First Name:", first_name)
print("Last Name:", last_name)

This results in the following output:

First Name: John Doe
Last Name: Smith

Codebyte Example

The code below is runnable and uses .rsplit() to split csv_data:

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