How Can I Split Strings with Multiple Delimiters in Python?

Splitting Strings with Multiple Delimiters in Python

When dealing with strings that require splitting based on specific delimiters, Python offers a convenient solution without the need for regular expressions.

The Split Function

Python's split function allows you to split a string based on a provided delimiter. By utilizing multiple delimiters separated by the pipe character ('|'), you can achieve splitting on various conditions.

For instance, the following code snippet demonstrates splitting a string on both semicolons (';') and commas followed by a space (', '):

import re

delimiters = '; |, '
string_to_split = "b-staged divinylsiloxane-bis-benzocyclobutene [124221-30-3], mesitylene [000108-67-8]; polymerized 1,2-dihydro-2,2,4- trimethyl quinoline [026780-96-1]"

split_list = re.split(delimiters, string_to_split)

print(split_list)

This will produce the desired list:

['b-staged divinylsiloxane-bis-benzocyclobutene [124221-30-3]', 'mesitylene [000108-67-8]', 'polymerized 1,2-dihydro-2,2,4- trimethyl quinoline [026780-96-1]']

Additional Delimiters

To extend the splitting functionality to include other delimiters, such as the asterisk (*) or newline character (n), simply append them to the delimiters string, separated by the pipe character. For example:

delimiters = '; |, |\*|\n'

With this modification, you can split the following string:

string_to_split = 'Beautiful, is; better*than\nugly'

Into:

['Beautiful', 'is', 'better', 'than', 'ugly']

By leveraging Python's split function and the flexibility of multiple delimiters, you can efficiently manipulate strings to meet your specific requirements.

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