python - Verify Regex Pattern to find email address in HTML -


new regex , python: verify what's wrong below regex pattern find email address in html code:

test_str = ("html-code")  regex = re.compile(r"[\w._%+-]{1-20}@[\w.-]{2,20}.[a-za-z]{2,3}") matches = re.findall(regex, test_str)

getting out empty array.


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