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    <p><strong>This is the process of building a phone number scraping regex.</strong></p> <p>First, we need to match an area code (3 digits), a trunk (3 digits), and an extension (4 digits):</p> <pre><code>reg = re.compile("\d{3}\d{3}\d{4}") </code></pre> <p>Now, we want to capture the matched phone number, so we add parenthesis around the parts that we're interested in capturing (all of it):</p> <pre><code>reg = re.compile("(\d{3}\d{3}\d{4})") </code></pre> <p>The area code, trunk, and extension might be separated by up to 3 characters that are not digits (such as the case when spaces are used along with the hyphen/dot delimiter):</p> <pre><code>reg = re.compile("(\d{3}\D{0,3}\d{3}\D{0,3}\d{4})") </code></pre> <p>Now, the phone number might actually start with a <code>(</code> character (if the area code is enclosed in parentheses):</p> <pre><code>reg = re.compile("(\(?\d{3}\D{0,3}\d{3}\D{0,3}\d{4}).*?") </code></pre> <p>Now that whole phone number is likely embedded in a bunch of other text:</p> <pre><code>reg = re.compile(".*?(\(?\d{3}\D{0,3}\d{3}\D{0,3}\d{4}).*?") </code></pre> <p>Now, that other text might include newlines:</p> <pre><code>reg = re.compile(".*?(\(?\d{3}\D{0,3}\d{3}\D{0,3}\d{4}).*?", re.S) </code></pre> <p><strong>Enjoy!</strong></p> <p>I personally stop here, but if you really want to be sure that only spaces, hyphens, and dots are used as delimiters then you could try the following (untested):</p> <pre><code>reg = re.compile(".*?(\(?\d{3})? ?[\.-]? ?\d{3} ?[\.-]? ?\d{4}).*?", re.S) </code></pre>
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    1. POFind phone numbers in python script
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