How Can I Split a String Using Multiple Delimiters in Python?

Splitting Strings with Multiple Delimiters in Python

Splitting strings with multiple delimiters can be a tricky task, especially without using regular expressions. However, Python offers a built-in solution using the re.split() function.

To split a string on either ';' or ', ' (a comma followed by a space), we can use the following pattern:

re.split('; |, ', string_to_split)

This pattern matches any occurrence of ';' or ', ' and splits the string accordingly. For example, the following string:

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

will be split into:

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

Update:

As noted in the comment, we can extend the pattern to split on multiple delimiters, including * and line breaks (n):

re.split('; |, |\*|\n', string_to_split)

This will split the following string:

'Beautiful, is; better*than\nugly'

into:

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

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