How can regex in Python be used to extract the text located between numerical values?

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One way to extract text located between numerical values using regex in Python is to use lookbehind and lookahead assertions. Here is an example:

import re

text = "123 this is some text 456 that we want to extract 789"
pattern = r"(?<=\d\s).*?(?=\s\d)"

result = re.findall(pattern, text)
print(result)

Explanation:

• (?<=\d\s) is a positive lookbehind assertion that matches a digit followed by a whitespace character (but does not include the match in the result).
• .*? matches any character (except a newline) zero or more times, but as few times as possible (non-greedy).
• (?=\s\d) is a positive lookahead assertion that matches a whitespace character followed by a digit (but does not include the match in the result).

The re.findall function returns a list of all non-overlapping matches of the pattern in the text. In this case, the result will be:

['this is some text', 'that we want to extract']