python regex how to split a string on multiple characters

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certainly! regular expressions (regex) in python provide powerful ways to manipulate and search strings. the `re` module in python includes functions that allow you to work with regex.

using regex to split a string on multiple characters

step-by-step tutorial

1. **import the `re` module**: before you can use regex functions, you'll need to import the `re` module.

2. **define the string**: decide on the string you want to split and identify the characters you want to split on.

3. **create a regex pattern**: to split on multiple characters, you can use a character class (square brackets) or a pipe (`|`) to denote "or".

5. **review the output**: the result will be a list of substrings.

example code

here's a complete example demonstrating how to split a string on multiple delimiters:

explanation of the code

- **importing `re`**: the `import re` statement gives us access to regex functions.
- **defining the string**: in this example, `input_string` contains fruits separated by various delimiters.
- **creating a regex pattern**: the pattern `r"[;,:|]"` uses a character class to specify that we want to split the string at any occurrence of `;`, `,`, `|`, or `:`.
- **printing the result**: finally, the output is printed, which will be a list of the split substrings.

output

for the provided input string, the output will be:

additional notes

- **whitespace handling**: if you want to remove leading or trailing whitespace from the resulting substrings, you can use a list comprehension:



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#Python #Regex #numpy
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